12.6 Review

A store purchased record players for $12 each, then marked their price up to $21 before selling them to customers. What is the percent of mark-up?

• 25%

• 90%

• 75%

• 80%

• y = 750x

• y = 250x

• y = 3x

• x = 250x

There are 450 sixth - eighth graders at Hawk middle school. The table below shows what percent of the students are in each grade.

• 90

• 45

• 270

• 180

Elliot had 8 1/4 cups of sugar. Each cup will make 12 cookies. How many cookies can Elliot make?

• 96 cookies

• 99 cookies

• 20 1/4 cookies

• 3 and 3/4 cookies

Solve for w.

-16 + 5w = -1

• w = -3

• w = 3

• w = 11

• w = -11

Solve for e.

-6e − 4 = 26

• e = 5

• e = 30

• e = -5

• e = -30

Bobby gets paid $25 for each new customer he gets to sign up for a cell-phone line. He also makes a $60 for each shift he works at the store. Write an equation that represents y the total amount of money Bobby earns during a shift if he sells x phones.

• y = 60x + 25

• y = 25x + 60

• y = 10x + 25

• y = 25x + 10

Megan needs 20 3/4 meters of fencing to enclose her garden. She has a strip of fencing that is 6 1/4 meters

long, and another strip of fencing that is 10 3/4 meters long. How much more fencing does Megan need?

• 3 3/4

• 17 1/4

• 16 1/4

• 7 3/4

Paul went on a diet and reduced his weight from 200 pounds to 180 pounds. By what percentage did he reduce his weight?

• 20%

• 80%

• 40%

• 10%