Evaluate 5a−b when a=4 and b=12.

Answer:

8

Step-by-step explanation:

5a - b

5(4) - 12

20 - 12

8

20 POINTS HELP!!!!!!!!!!

a car travels 360 miles on 18 gallons of gas ,whats the unit rate ?

HELP ASAP PLEASE Which is the correct way to model the equation 5 x + 6 = 4 x + (negative 3) using algebra tiles? 5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side 6 positive x-tiles and 5 positive unit tiles on the left side; 3 negative x-tiles and 4 positive unit tiles on the right side 5 positive x-tiles and 6 negative unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side 5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 positive unit tiles on the right side

Three friends go grocery shopping together and each buys same kind of oranges. Lamar buys 2 pounds and pays 7.00 Enrico buys 3 pounds and pays 10.50 Anna buys 1.5 pounds in pays 5.25

Math Questions!!! Please help if you see this!!
For #'s 1-2 find each unit rate and round to the nearest hundredth if necessary
1.) $140 for 18ft^{2}
2.) 14 lb for $2.99
For #'s 3-4 circle the better deal and give the unit rate for the better deal
3.) $56/25gal or $32.05/15gal
4.) $160/5g or $315/9g
......5-8 i have to do on my own bc they are word problems......
9.) How can you use rates to determine whether a situation is proportional relationship?
!!!!THANK YOU IF YOU HELPED, I'LL GIVE 5 STARS AND A THANKS HEART!!!!

1) How much is this person saving per week?

a:$30
b:$90
c:$120
d:$2

In French, the word collage means _______, according to the information presented in the lecture. a. to combine c. to glue b. to hold d. to arrange Please select the best answer from the choices provided A B C D

DUE TODAY!!! Possibly my last question of the day... here's the attachment:

PLEASE HELP
Will mark brainliest

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

This is worth 15 points! Whoever gets it right gets brainlest.

What is the equation in slope-intercept form of the linear function represented by the table?

Solve. (USE PEMDAS)

7(6+6) Divided by 4

Which statements accurately describe how to determine the y-intercept and the slope from the graph below?

The pre–image, A, was dilated about the origin. It was then transformed in another way to get A'.

What was the transformation after the dilation?
rotation 90° counterclockwise
translation down 9 units
reflection over the x-axis
reflection over the y-axis

I only need to answer the first one, but I need you to tell me if the others are correct or incorrect, if they are incorrect please help me.

Rotation of 90 degrees counter clockwise of point A (7, 4).
Quadrant of given point: 1
Coordinates after the switch: 4, 7
Quadrant after rotation:
New coordinates after rotation:

Rotation of 180 degrees of point B at (-8, -2).
Quadrant of given point: 3
Quadrant after rotation: 1
New coordinates after rotation: 8, 2

Rotation of 270 degrees clockwise around the origin of point C at (9, -5).
Quadrant of given point: 4
Coordinates after the switch: 5, 9
Quadrant after rotation: 1
New coordinates after rotation: 5. 9

Rotation of 90 degrees clockwise around the origin of point D at (-6, -11).
Quadrant of given point: 3
Coordinates after the switch: 11, 6
Quadrant after the rotation: 2
New coordinates after rotation: -11, 6

Look and the picture below and answer the question correctly! :)

Which division equation matches this multiplication equation?
15⋅25=6

A.6÷25=156÷25=15

B.25÷15=625÷15=6

C.15÷25=6

Choose one of the following fractions to describe how to solve using long division? Please give your answer. 9/25 11/30 4/11

use the following function rule to fine the
f(x)=9-7[x]

Mrs. Baxter needs to buy new headphones for all 559 students. If each headphone costs 15 dollars, how much will it cost Mrs. Baxter to buy all the headphones? (ik its easy i just cant get the right answer somehow)

PLS HELP
Triangle ABC has three coordinates with a negative x-value and a positive y-value. Which of the following transformations would place its image in Quadrant III?

A.
reflection over the x-axis

B.
dilation of scale factor
1
2

C.
rotation 180° counterclockwise

D.
translation 8 units to the left and 5 units up

The table below shows the total number of hours Jessica, Emily, and Trina each studied after a given number of weeks.

One of the relationships between weeks and total hours studied is proportional.

Whose number of total hours studied is proportional to the number of weeks studied?
For the proportional relationship, write an equation to represent y , the total number of hours studied, in terms of x , the number of weeks.
Explain how you determined your equation.

How can you identify a linear nonproportional relationship from a table, a graph, and an equation?


From a table, for an ordered pair (0, y), y will not be_____. From a graph, the y−intercept will not be_____. From an equation, it will have the form y = mx + b where b is not ____.
SOMEONE HELP THIS IS DO TODAY ! PLEASE SOMEONE HELP MEH!
:(
I NEED HELP NO ONE IS HELPING MEH :(

David played 20 minutes of basketball with his friends. If that represents 40% of the time he spent with his friends, how long did he play basketball?

Simplify 8 − (14). −22 −6 6 22
help pls

Here is the question

The value of y varies directly with x, when y = 2 and x = 3. What is the equation for this relationship? What is the value of y when x = 18?

F. If you make $28 dollars and hour and work for 32 hours in a week. How much money do you Gross ?
you multiply $28 by 32. Which is $896


G. Take the answer from Letter F ( weekly earnings) and find what 70% of that amount is ?


can you also show an explanation? because i dont understand how to do this.

A punch recipe calls for 6 quarts of juice. If the recipe is tripled, how many gallons of juice will be needed?
Please explain how to get the answer and what is the answer.
A.) 18
B.) 9
C.) 4 1/2
D.) 3