Belinda is thinking about buying a house for $179,000. The table below shows the projected value of two different houses for three years: Number of years 1 2 3 House 1 (value in dollars) 186,160 193,606.40 201,350.66 House 2 (value in dollars) 190,000 201,000 212,000 Part A: What type of function, linear or exponential, can be used to describe the value of each of the houses after a fixed number of years? Explain your answer. (2 points) Part B: Write one function for each house to describe the value of the house f(x), in dollars, after x years. (4 points) Part C: Belinda wants to purchase a house that would have the greatest value in 30 years. Will there be any significant difference in the value of either house after 30 years? Explain your answer, and show the value of each house after 30 years. (4 points)

Answers

Answer 1

Answer:

A) both functions are linear

B) f(x) = 7446.4x + 178713.6 and f(x) = 11000x + 179000

C) House 2 will value $106894.4 more than house 1.

Step-by-step explanation:

A) Value Increase from year 1 to year 2:

House 1: 193,606.40 - 186,160 = 7446.4

House 2: 201,000 - 190,000 = 11000

Value Increase from year 2 to year 3:

House 1: 201,350.66 - 193,606.40 = 7744.26

House 2: 212,000 - 201,000 = 11000

This means that a constant increament in x variable gives a constant increament in both houses vales. Then, both functions are linear.

B) The slope is the same as the value increment from one year to the next one.

slope (m) of House 1: 7446.4

slope (m) of House 2: 11000

General formula of a line:

f(x) = mx+b

Replacing with a known point:

House 1

186,160 = 7446.4(1) + b

b = 186,160 - 7446.4 = 178713.6

equation: f(x) = 7446.4x + 178713.6

House 2

190,000 = 11000(1) + b

b = 190,000 - 11000 = 179000

equation: f(x) = 11000x + 179000

C) Replacing x = 30 into each equaiton:

Value of House 1 after 30 years

f(x) = 7446.4(30) + 178713.6 = 402105.6

Value of House 2 after 30 years

f(30) = 11000(30) + 179000 = 509000

Then, house 2 will value 509000 - 402105.6 = $106894.4 more than house 1.


Related Questions

Find the x- and y-intercepts of the graph of – 10x + 3y = 10. State your
answers as whole numbers or as improper fractions in simplest form.
M

Answers

I hope you see what I did there. if you still confused, comment and I'll help

If the areas of two similar triangles are equal, prove that they are congruent

Answers

Refer the attached image for the answer

HOPE SO IT HELPS YOU

Simply Square Roots of 45
[tex] \sqrt{45} [/tex]

Answers

Answer:

[tex] 3\sqrt{5} [/tex]

Step-by-step explanation:

Find the largest factor of 45 that is a perfect square.

The factors of 45 are 1, 3, 5, 9, 15, 45.

The largest perfect square is 9.

Now breakup 45 into a product which has 9 as a factor.

45 = 9 * 5

[tex] \sqrt{45} = \sqrt{9 \times 5} = \sqrt{9} \times \sqrt{5} = 3\sqrt{5} [/tex]

If A=(prime number less than 10)list the element of set A and find n(A)​

Answers

A=(2 3 5 7)
N(A) =4


( sorry I need the points)

What is the sign of y + x?
y
0
Choose 1 answer:
Positive
B
Negative
Zero

Answers

Answer:

C

Step-by-step explanation:

As y is zero, y/x will be zero

Please help a-e I will rate and like response. Thank u

Answers

Answer:

VOLUME OF RIGHT CIRCULAR CONE=≈74.93136cm^3

VOLUME OF SPHERE: ≈523.6cm^3

ground of the following nearest tens and Place a 7639. b_4325671​

Answers

Answer:

a)7640

b)4325670

Step-by-step explanation:

when rounding off a number one of the factors to consider is the number before the number you are supposed to round off,if the number is greater than 5 or equal to then you can go ahead and add a 1 to the number you have to round off.but if the number before is less than 5 you just have to leave the number the way it is.in this case for the first question you can see that the tens number is 3 and the number before is greater than 5 so you can add a 1 to the 3 to make it 4, bringing the answer to 7640 the 9 becames a zero..for the second one you can see that the number before the tens number is less than 5 so you can't add a 1 to it leaving the answer as 4325670..

I hope this helps

yx(y+1) + 4x(y + 1) - 5(y + 1) factor

Answers

( yx + 4x - 5 )( y + 1 )

.....................................

A package of 4 red,white and blue hats costs $8. What is the unit rate

Answers

Answer:

$2/ hat

Step-by-step explanation:

Find the unit rate:

$ to hats

8 to 4

Divide by four to get the unit rate; over 1

2 to 1

So, $2 per hat

Hope this helps!

The answer is 2/ hat Bc I got it right

Someone please helppp

Answers

Answer:

k = 5/6

Step-by-step explanation:

First, we can make this have the form of a quadratic function, or ax²+bx+c=0. To do this, we can first subtract 10x from both sides to get

(2k+1)x²-8x=-6

Next, we can add 6 to both sides, resulting in

(2k+1)x²-8x+6 = 0

For a quadratic function of form ax²+bx+c=0, we can see that a=2k+1, b=-8, and c=6. We can then apply the quadratic equation, or

x= (-b ± √(b²-4ac))/(2a) to get our roots to be

x= (8 ± √(64-4(6)(2k+1)))/(2*(2k+1))

=  (8 ± √(64-(48k+24)))/(4k+2)

=  (8 ± √(40-48k))/(4k+2)

For the roots to be equal, we must have the two roots equal to each other. We can write this as

(8 + √(40-48k))/(4k+2) = (8 - √(40-48k))/(4k+2)

multiply both sides by (4k+2) to remove the denominator

8+√(40-48k) = 8 - √(40-48k)

subtract 8 from both sides to isolate the square roots

√(40-48k) = - √(40-48k)

The only number that is equal to its negative self (and is real) is 0. Therefore, √(40-48k) = - √(40-48k) = 0, so we have

√(40-48k) = 0

square both sides to remove the square root

40-48k = 0

add 48k to both sides to isolate the k and its coefficient

40 = 48k

divide both sides by 48 to isolate k

k = 40/48 = 5/6

help help help


From the top of a lighthouse was 60 m above sea level. A ship located 1200 m
from the shore could spot the lighthouse. What was the angle of depression from
the top of the lighthouse to the ship?

Answers

Answer:

I think 60 - 1200 but i am not conform

The angle of depression from the top of the lighthouse to the ship is 0.04998 radians.

Given that, the top of a lighthouse was 60 m above sea level. A ship located 1200 m from the shore could spot the lighthouse.

We need to find the angle of depression from the top of the lighthouse to the ship.

What is the angle of depression?

The angle is formed by the line of sight and the horizontal plane for an object below the horizontal.

Now, sin b=60/1200

⇒sin b=1/20

⇒sin b=0.05

⇒b=0.04998 radians

Now, b=x=0.04998 radians

Therefore, the angle of depression from the top of the lighthouse to the ship is 0.04998 radians.

To learn more about the angle of depression visit:

https://brainly.com/question/13514202.

#SPJ2

If T is the midpoint of SU what are ST, TU, and SU?

a. ST = 7, TU = 63, and SU = 126


b. ST = 63, TU = 63, and SU = 126


c. ST = 80, TU = 80, and SU = 160


d. ST = 18, TU = 18, and SU = 36

Answers

Answer:

B

Step-by-step explanation:

As T is the midpoint of SU, ST=TU. 9x=5x+28, 4x=28, x=7. ST=TU=63 and SU=126

Simplify this Algebraic equation with steps
-6q +7 -2 +4q

Answers

Answer:

-2q+5

Step-by-step explanation:

-6q +7 -2 +4q

Combine like terms

-6q+4q+7-2

-2q+5

Answer:

= solution,

= -6q + 7 - 2 +4q

= -6q + 4q +7 -2

= - 2q + 5

✌✌✌✌

If it takes a team of three painters to paint a 7-room house in a day, how many painters are required to paint a 14-room house in a day?

Answers

Answer: 6 Painters

Step-by-step explanation:

Total painters needed to paint 7-room house = 3 painters

Rooms painted by each painter = 3/7

Total painters needed to paint 14-room house = 3/7×14

= 42/7

= 6 painters

Therefore it will require 6 painters to paint 14-room house

please click thanks and mark brainliest if you like :)

S=n/2(2a+(n-1)d). If d=5, n=13, S=585 find the value of a.​

Answers

Answer:

15

Step-by-step explanation:

Sum of 'n' terms formula is given by:-    

s=n/2(2a+(n-1)d)  

s=13/2[2xa+(13-1)5]    

s=13/2(2xa+12x5)    

s=13/2(2a+60)    

585=13/2(2a+60)    

585 x (2/13) = 2a + 60

90 = 2a + 60  

90-60 = 2a

30 = 2a

a = 15

what is 2/5 divided by -1/2 minus 3/2

Answers

Answer:

[tex] - \frac{23}{10} [/tex]

Step-by-step explanation:

[tex] \frac{2}{5} \div \frac{ - 1}{2} - \frac{3}{2} [/tex]

➡️ [tex] - \frac{2}{5} \times 2 - \frac{3}{2} [/tex]

➡️ [tex] - \frac{4}{5} - \frac{3}{2} [/tex]

➡️ [tex] - \frac{23}{10} [/tex]

Evaluate the integral by interpreting it in terms of areas Draw a picture of the region the integral

Answers

Answer:

Step-by-step explanation:

The picture is below of how to separate this into 2 different regions, which you have to because it's not continuous over the whole function. It "breaks" at x = 2. So the way to separate this is to take the integral from x = 0 to x = 2 and then add it to the integral for x = 2 to x = 3. In order to integrate each one of those "parts" of that absolute value function we have to determine the equation for each line that makes up that part.

For the integral from [0, 2], the equation of the line is -3x + 6;

For the integral from [2, 3], the equation of the line is 3x - 6.

We integrate then:

[tex]\int\limits^2_0 {-3x+6} \, dx+\int\limits^3_2 {3x-6} \, dx[/tex]    and

[tex]-\frac{3x^2}{2}+6x\left \} {{2} \atop {0}} \right. +\frac{3x^2}{2}-6x\left \} {{3} \atop {2}} \right.[/tex]  sorry for the odd representation; that's as good as it gets here!

Using the First Fundamental Theorem of Calculus, we get:

(6 - 0) + (-4.5 - (-6)) = 6 + 1.5 = 7.5

The value of the integral   [tex]\int\limits^3_0 {|3x-6|} \, dx[/tex]  is -9/2.

The given integral is [tex]\int\limits^3_0 {|3x-6|} \, dx[/tex]

We have to find the value of this integral.

We know that ∫xⁿ dx= xⁿ⁺¹/n+1

So,  [tex]\int\limits^3_0 {|3x-6|} \, dx[/tex] = 3x²/2 -6x (from 0 to 3)

Apply the limits.

=3(3)²/2-6(3)

=27/2-18

=27-36/2

=-9/2.

Hence, the value of the integral   [tex]\int\limits^3_0 {|3x-6|} \, dx[/tex]  is -9/2.

To learn more on Integrals click:

https://brainly.com/question/31433890

#SPJ6

the length of each Edge of a cube is X centimeters. if x is an integer, why can't the volume of the cube equal 15 cm3.​

Answers

Answer:

see explanation

Step-by-step explanation:

The volume cannot be 15 cm³ because it is not a perfect cube.

V = x³

let x = 4 then x³ = 4³ = 64 ← a perfect cube

There is not an integer when cubed gives 15

type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar

Answers

Step-by-step explanation:

The first piece wise function is from interval (-3,-1). The line during this interval isnt constant so this means that f(x) must be a linear equation along interval -3 to -1. The line has a slope of 1. And if we keep continuing, our y intercept will be 3. So we can say that

[tex]f(x) = x + 3 \ : if \: - 3 \leqslant x < - 1[/tex]

Foe the 2nd, the interval is between -1 and 1.

The line is constant so f(x) is going to be equal to one y value. The y value is passed through is 5 so we can say that

[tex]f(x) = 5 \: if \: - 1 \leqslant x \leqslant 1[/tex]

Given: LMN = PQR Find: m

Answers

Answer:

I don't understand the question?

WILL GIVE BRAINLIEST:
Elanor wants to estimate the number of frogs in a reservoir.
She catches 90 frogs from the reservoir and marks them with a non-harmful dye.
Elanor then returns the frogs to the reservoir.
The next day she catches another 70 frogs and 10 of these are marked with the dye.
Work out an estimate for the total number of frogs in the reservoir.

Answers

Answer:

approximately 150 frogs

Step-by-step explanation:

To find your estimate, you have to add 90 + 60 because from the 70 that Elanor caught the second day, 10 of them were the ones that she had caught the day before so you have to do 70 - 10 = 60. Therefore, 90 + 60 = 150 estimated frogs.

Ok ong i'm struggling and need help i've been up all night- Ill give brainlyest!!
Solve the following problems below. Find the variable and show your work
1.) 7(6x-1)+x=36
2.) 11-2(8+3p)=7²
3.) 1/4(5b+11)=19
4.) 2/7(4m-18)=12

Answers

Answer:

1- 91315

Step-by-step explanation

- 7(6x-1)+x=36

=> 42x - 7 + x = 36=> 43x - 7 = 36=> 43x =  36 + 6 = 43=> x = 43 / 43 = 1

- 11-2(8+3p)=7²

=> 11 - 16 - 6p = 7^2=> 11 - 16 - 6p = 49=> -5 - 6p = 49=> -6p = 49 + 5 = 54=> p = (54) / (-6) = - 9

-  1/4(5b+11)=19

=> (5/4)b +  (11/4) = 19=> (5/4)b = 19 - (11/4) = 65 /4=> b = (65/4) / (5/4) => (65/4) * (4/5) = 13

- 2/7(4m-18)=12

=> (8/7)m - (36/7) = 12=> (8/7)m = 12 + (36/7) = 120/7=> m = (120/7) / (8/7) = 120 /8 = 15

The points (3,6) and (5,12) lie on the graph of a linear equation. Is (4,8) a solution of the same linear
equation? Explain.

Answers

After finding the equation of the line, it is found that:

Since replacing x by 4 and y by 8 in the equation of the line does not result in an identity, (4,8) is not a solution of the same linear  equation.

------------------------

Equation of a line:

The equation of a line is given by:

[tex]y = mx + b[/tex]

In which m is the slope and b is the y-intercept.

------------------------

Finding the slope:

Given two points (x,y), the slope is given by change in y divided by change in x.

Points (3,6) and (5,12)Change in y: 12 - 6 = 6Change in x: 5 - 3 = 2Slope: [tex]m = \frac{6}{2} = 3[/tex]

Thus:

[tex]y = 3x + b[/tex]

------------------------

To find the y-intercept, we replace one of the points into the equation. I will replace (3,6). Thus:

[tex]6 = 3(3) + b[/tex]

[tex]b = 6 - 9 = -3[/tex]

Thus, the equation of the line is:

[tex]y = 3x - 3[/tex]

------------------------

Is (4,8) a solution of the same linear  equation?

We have to replace x by 4 and y by 8, and see if it results in an identity. So

[tex]8 = 3(4) - 3[/tex]

[tex]8 = 12 - 3[/tex]

[tex]8 \neq 9[/tex]

Since replacing x by 4 and y by 8 in the equation of the line does not result in an identity, (4,8) is not a solution of the same linear  equation.

A similar problem is given at https://brainly.com/question/16024991

Proportion problems
8 chickens would lay 20 eggs in 3 days.
If chickens always lay eggs at the same rate,
a) how many days would it take to chickens to lay 100 eggs?
= 10 days
b) how many chickens would be required if a farmer needed 30 eggs each day?
i need help how to do question b. i know answer bu,.t i need explaining.
:]

Answers

Ok so u know the answer is 12 right. The answer would be that we need 12 chickens to lay 30 eggs a day because 4+4= 8 chickens 10+10= the 20 eggs in three days. So adding 4 more chickens would be 12 chickens which would add another 10 eggs making it 12 chickens laying 30 eggs a day

Dr. Perry conducts a study in which she evaluates the effectiveness of an adult literacy program. The study is both quantitative and qualitative in nature, and the 30 participants are treated as equal researchers in the study. What research method is Dr. Perry MOST likely to use

Answers

The method is Dr. Perry most likely to use is Participatory action research.

Participatory action research is a type of research characterized by :

Qualitative and quantitative method Active participation of the community involved in the research

Additionally, in this type of research, the community involved is treated as researchers and their contributions are taken into account in the result of the same.

According to the above, the type of research suitable for Dr Perry's study is participatory action research, since it includes all the factors that Dr Perry takes into account for her research such as quantitavie/qualitative method and active participation from the community involved.

On the other hand, case study, naturalistic observation, and focus group are not the correct options because they use other methods in which the studied community does not actively participate.

Learn more in: https://brainly.com/question/15930435

Note:

This question is incomplete because the options are missing. Here are the options.

A. Case study

B. Naturalistic observation

C. Participatory action research

D. Focus group

write down atleast five number pairs to solve the equation (r-2) (s+1) = 100

Answers

Answer:

1. (52 - 2) (1 + 1) = 1002. (12 - 2) (9 + 1) = 1003. (6 - 2) (24 + 1) = 1004. (3 - 2) (99 + 1) = 1005. (102 - 2) (0 + 1) = 100

Step-by-step explanation:

1. let r= 52 and s= 1(52 - 2) (1 + 1) = 10050 × 2 = 1002. let r= 12 and s= 9(12 - 2) (9 + 1) = 10010 × 10 = 1003. let r= 6 and s= 24(6 - 2) (24 + 1) = 1004 × 25 = 1004. let r= 3 and s= 99(3 - 2) (99 + 1) = 1001 × 100 = 1005. let r= 102 and s= 0(102 - 2) (0 + 1) = 100100 × 1 = 100

[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]

Find the value of x.

Answers

Answer:

Step-by-step explanation:

Bonsoir,

63°

The value of external angle x intercepted by two tangents is 63°

We have,

From the given figure,

External  angle = x

From the definition of external angle intercepted by two tangents.

External angle = 1/2 x difference of the intercepted arc length

Now,

Difference of the arc length.

= 243 - (360 - 243)

= 243 - 117

= 126

Now,

Substituting the values.

External angle = 1/2 x difference of the intercepted arc length

= 1/2 x 126

= 63

Thus,

The value of external angle x is 63°

Learn mroe about intercepted arc here:

https://brainly.com/question/32892950

#SPJ6

How do you solve combination (working together) rate problems example, if john can do a particular job in 4 hours, but Mitch can do the same job in 3, how long will it take them to do the same job if they work together?

Answers

3 hours and 30 minutes as ambod will work half the time

Simplify the radical sqrt(18d ^ 9); 3sqrt(2a ^ 7); 2a ^ 3 * sqrt(3); a ^ 4 * sqrt(18a); 3a ^ 4 * sqrt(2a)

Answers

Answer:

The answer above is completely correct, but it may help the student to see how to reach it:

We seek a square root of

3

2

2

. This must have the form

a

+

b

2

.

(

a

+

b

2

)

2

=

a

2

+

2

a

b

2

+

2

b

2

So

a

2

+

2

b

2

=

3

and

2

a

b

=

2

a

b

=

1

These are two simultaneous equations for

a

and

b

.

Rearrange the second:

b

=

1

a

Substitute into the first:

a

2

+

2

a

2

=

3

a

4

+

2

=

3

a

2

a

4

3

a

2

+

2

=

0

Note that this is a quadratic in

a

2

:

(

a

2

)

2

3

(

a

2

)

+

2

=

0

Factorise:

(

a

2

2

)

(

a

2

1

)

=

0

This gives us two possible solutions for

a

2

:

2

and

1

, and so the four solutions for

a

:

±

2

and

±

1

.

We are looking for integer solutions for

a

, and so

±

1

are possible solutions. But the other two are possible too - they can simply be folded in to the

2

term. This wouldn't have been possible if we'd had the root of some other number in the solution for

a

, but this solution is a special case.

Now use the second equation to deduce the four equivalent solutions for

b

:

b

=

1

a

b

=

¯¯¯¯¯

+

1

2

=

¯¯¯¯¯

+

1

2

2

and

¯¯¯¯

+

1

.

So we have the four solution pairs

(

a

,

b

)

:

(

2

,

1

2

2

)

(

2

,

1

2

2

)

(

1

,

1

)

(

1

,

1

)

This is a bit suspicious - we expect only two solutions, positive and negative square roots, so we wonder if some of these are identical to each other: When we substitute them in to our desired expression

a

+

b

2

, we get:

2

1

2

2

2

=

1

+

2

2

+

1

2

2

2

=

1

2

1

2

1

+

2

So the two solutions with

2

are identical to the two simpler solutions, so we can get rid of them. We now have two solutions, positive and negative square roots:

1

2

1

+

2

When we take the written square root of a quantity, it is implied that the desired root is the positive root, the "principal value" of the square root function. So we take the single solution that comes from

a

=

+

1

:

1

2

Double check: Make sure that this produces the desired answer:

(

1

2

)

2

=

1

2

2

+

2

=

3

2

2

I think this will help you

factorize 49 - d² plz​

Answers

Answer:

(7-d)(7+d)

Step-by-step explanation:

49 - d^2

Rewriting

7^2 - d^2

We know that a^2 - b^2 = (a-b)(a+b)

(7-d)(7+d)

The answer you are looking for is -(d+7)(d-7).

Other Questions
what is filtration? 1. The sazkis ars wealthy now, but de let them beforethey struck oil.(1) Bazukis are wealthy now: but(2) gazakis are wealthy non, but(3) sezukis are Healthy now. But(4) Sazakis are wealthy now, but(5) no eTO Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 20 feet, 18 feet, and 14 feet long. If the two shortest sides of quadrilateral EFGH are 6 feet long and 5 feet long, how long is the 2nd longest side on quadrilateral EFGH?A. 9.2 feetB. 6.4 feetC. 11.7 feetD. 7.7 feet Scanlon Corporation has estimated its activity for April as follows: Sales: $900,000 Gross profit (based on sales): 30% Increase in accounts receivable during month: 15,000 Increase in finished goods inventory during month: 25,000 Total selling and administrative costs: 80,000 Depreciation included in selling and administrative costs: 15,000 Scanlon has no raw material or work in process inventory at the beginning or end of April. On the basis of the above, what are estimated cash disbursements for April Need help please and check your answer Please help me answer this? 2. An entrepreneur must make sure to budget carefully since they oversee their own company's finances.TrueFalse How many inches are in 300 meters? Using the method of dimensional analysis Could someone help with this? Much appreciated! Please answer this and show the work/explain for me2/7m - 1/7 = 3/14 Read the message from your little brother, Leon. Hi, I'll be sitting for a big examination this year so it is very important for me to prepare earlier. Do you have any tips on how to study smart? Appreciate if you could help me with this one. Thank you! Leon In about 80 words, write a message to Leon giving tips and suggestions on how to study smart. Which of the following statements is false? unos libros de nosotros nuestros libros nuestras libros sus libros tus libros cudsnfgjhwilegfusd;pczx I. Choose the word whose underlined part is pronounced differently from that of the others1.A. prizeB. drillC. brickD. trim2.A. broomB. proofC. bloodD. troop3.A. practiceB. crackerC. tractorD. bracelet4.A. trophyB. problemC. broccoliD. drop5.A. trunkB. prudentialC. brushD. crushII. Choose the best answer to fill in the blank.1.Mai enjoys __________ to music, especially pop music in her free time.A. hearingB. playingC. listeningD. talking2.My grandparents love ______________ very much. There are a lot of beautiful flowers and fresh vegetables in their garden.A. doing gardenB. doing gardeningC. do gardeningD. to do garden3.You should avoid ___________ too much TV. Its not good for your eyes.A. seeingB. lookingC. watchingD. glancing4.Nga likes ___________ with her close friend on Saturday evenings. She feels relaxing.A. window shopB. window to shopC. window shopsD. window shopping5.Lan used to love ____________ in front of the computer for hours but now she doesnt. She takes part in a judo club.A. usingB. sittingC. doingD. having6.Minh is a very hard-working boy. He doesnt mind __________ a lot of homework in the evenings.A. makingB. readingC. seeingD. doing7.Do you fancy __________ around the West Lake with me this Sunday morning?A. goingB. havingC. stayingD. moving8.I dont like _________ up early in the winter days. I love _______ in bed late.A. getting/stayB. get/ stayC. getting/ stayingD. get/ staying9.Mais dad likes ______ spring rolls when her family has parties.A. doingB. makingC. cookingD. trying10.Why dont we _________ our parents with some DIY projects? I think it is useful.A. helpB. doC. makeD. give What is the total cost of a $28 pair of jeans if the sales tax is 7.5%? a3) Write a short note on a particular item of national wealth from your local community 18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL?21. An oxygen tank in the lab has a pressure of 12 atm at 250C. If the pressure inside the gas tank exceeds 25 atm, the tank will explode. If a fire occurs in the lab, raising the temperature of the gas inside the cylinder to 398oC, will the tank explode? (5.5 * 10^-6 + 6.3 * 10^-6)^2 how can unsafe road use impact negatively on your lifestyle ?