Which two expressions are equivalent?​​​​​​​

a. 7(3 + x) and 7• 3 + 3 • x

b. 7 + 3 + x and (7 + 3) + x

c. 7 • x • 3 and 7(x + 3)

d. 7 ÷ (3 – x) and 7 ÷ (x – 3)

I believe the answer is B

Could I please have the answer to this problem? Could I also please have an explanation, as I'm confused and I don't understand.

plz, help |write the expression using exponents. b·b·b

Jack left a tip of $5.75 for his waiter. If this represents 20% of his meal, what was the cost, in dollars, of Jack’s meal without the tip?
A. 80
B. 96

For A-D, choose Yes or No to indicate whether the number is between 4 and 5.

(-2 1/6) - (2/3) x (-1/4)

ASAP PLEASE!!!!!!!
Give explanation and step by step procedure!

EVERYONE GO WISH ME A HAPPY EARLY BIRTHDAY

A triangle contains vertices A (-3, 2), B (1, 2), and C (-4, -2).

If ∆ABC is rotated 90° counterclockwise around the origin, what are the coordinates of the transformed figure ∆A’B’C’ ?


A ’(-2, 3), B ’(-2, 1), C ’(2, -4)
A ’(-2, 3), B ’(-2, 1), C ’(2, -4)

A ’(-3, -2), B ’(1, -2), C ’(-4, 2)
A, ’(-3, -2), , B, ’(1, -2), , C, ’(-4, 2)

A ’(-2, -3), B ’(-2, 1), C ’(2, -4)
A, ’(-2, -3), , B, ’(-2, 1), , C, ’(2, -4)

A ’(-3, 2), B ’(1, 2), C ’(4, -2)
A, ’(-3, 2), , B, ’(1, 2), , C, ’(4, -2)

Please help!

The value of [tex]\frac{0}{(m+n)}[/tex] is part of what subset(s) of the real numbers? Select all that apply.

-integers
-whole numbers
-irrational numbers
-rational numbers

She finds a package of four noise-makers. At this rate, how many packages will she need to buy so that each person has one noise-maker? *

The total point value of all grades in your math class is 1,000 points. Of the total points, 5% come from homework, 25% come from daily assignments, and 70% come from test grades. How many total points are made up of homework and daily assignments?

A. 50
B. 250
C. 300
D. 700

PLS HELP!! I WILL GIVE THE FIRST GOOD ANSWERS BRAINLIEST!!!

Mr. Tang created a number line for his class to use.

A number line has points negative 4, A, B, blank, 0, blank, C, D, 4.

Which point is a representation of –(–3)?
Point A
Point B
Point C
Point D

Determine if each pair of ratios or rates is equivalent (please show work down below)

Pleas explain and show o a photos of the work you did. Please help this is due in 1 hour. Please help I also have more questions.

5 x (-5) x (-4)--five times negative five times negative four

Please help im testing rn
The circumference of a circle is 18 inches. Which choice represents the exact area of the circle?


81π inches2



324π inches2



254.34 inches2



1017.36 inches2

The M & P Pencil company that makes mechanical pencils expects to have two defective pencils for every 15 made. What is the number of defective pencils they will have in a batch of 4,485?

Lin and Eliza discovered that they have a lot in common
Reason about the correct unit of measure.
Explain your reasoning, using complete sentences.

PLEASE HELP!!! WILL GIVE BRAINLIEST, THANKS, RATE 5 STARS, AND 20 POINTS!!!

Please help me now! (For the first and the second.)

Solve the system of linear equations by substitution.

x + 2y = 7
4x + 3y = 3

answer must be an ordered pair, no spaces.

SOLVE THE GRAPH IN STANDERD FORM
(there's a pic)​

Please help me I will give you the brain thing and extra points, image below for graph.
This scatter plot shows the number of siblings 14 students have and each student's grade level.

Choose the conclusion that is best supported by the data shown in the scatter plot.


There is no relationship between grade level and the number of siblings each student has.

As grade level increases, the number of siblings each student has decreases.

As grade level increases, the number of siblings each student has stays the same.

As grade level increases, the number of siblings each student has increases.

Arisia puts $500 into a savings account with an annual simple interest rate of 4.5%. If the interest stayed the same, how much interest would arisia’s account earn after 15 years?

A rectangle has a length of 18 cm and a width of 12 cm. Which length and width would not be those of a similar rectangle?
A: 36 cm by 24 cm
B: 45 cm by 30 cm
C: 27 cm by 18 cm
D: 48 cm by 36 cm

Can you pls tell me the answers to these 2 questions (you can answer only one if you'd like, btw I was lazy to do them XD)

Last year, Renata earned $540 delivering newspapers. This year, Renata made 250% of what she made last year.

A tape diagram. 0 dollars is 0 percent. Question mark dollars is 250 percent.

Which steps should you take to find out how much money Renata made delivering newspapers this year? Check all that apply.
Convert 250% to a decimal to get 0.25.
Convert 250% to a decimal to get 2.50.
Multiply 0.25 by 540 to get $135.
Multiply 2.50 by 540 to get $1,350.
Check your answer by using 100% + 100% + 50% to get 540 + 540 + 270.Last year, Renata earned $540 delivering newspapers. This year, Renata made 250% of what she made last year.

A tape diagram. 0 dollars is 0 percent. Question mark dollars is 250 percent.

Which steps should you take to find out how much money Renata made delivering newspapers this year? Check all that apply.
A. Convert 250% to a decimal to get 0.25.
B. Convert 250% to a decimal to get 2.50.
C. Multiply 0.25 by 540 to get $135.
D. Multiply 2.50 by 540 to get $1,350.
E. Check your answer by using 100% + 100% + 50% to get 540 + 540 + 270.

help anyone??????????

The owner of a clothing store buys T-shirts for c dollars each and sells
them for p dollars each. Last month she bought 600 t-shirts and sold 500
of them and made a profit of $2,800. This month she bought 400 T-shirts
and sold them all and made a profit of $2,400. Which system of equations
can be used to determine the values of cand p?
a. 500p - 600c = 2,800
600p - 500c = 2,800

b. 400p - 400c = 2,400
400p - 400C - 2,400

c. 500p - 600c = 2,800
600p - 500c = 2,800

d. 400p - C = 2,400
400p - C = 2,400

A recipe that makes 10 blueberry muffins calls for 1 1/4 teaspoons of baking powder. How much baking powder is needed to make 3 dozen muffins?