Lesson 9, 10, and 11

48 ÷ 0.8

• 6
• 60
• 0.6
• 600

What is the perimeter of an equilateral triangle whose sides are 8.4 centimeters long?

• 8.4 cm
• 16.8 cm
• 25.2 cm
• 4.2 cm

Bart earns $8.25 for every hour he mows grass.

Part A:  On Tuesday, he mowed for 9.4 hours.  How much did he make on that job?

• $77.55
• $755.50
• $7.755
• $7555.00

Bart earns $8.25 for every hour he mows grass.

The job scheduled for Friday will pay $57.75.  How many hours will he mow for that job?

• 5 hours
• 6 hours
• 7 hours
• 8 hours

Landon needs to buy 10 pencils and 7 erasers.  A pencil is $0.89 and an eraser is $0.79.  How much will Landon spend for school supplies?

• $14.43
• $8.90
• $5.53
• $14.53

What is the least common multiple of 9 and 12?

• 3
• 6
• 108
• 36

What is the greatest common factor of 18 and 48?

• 2
• 3
• 6
• 7

What is the greatest common factor of 35 and 60?

• 3
• 6
• 5
• 4

Hotdogs are sold in packages of 10 and buns are sold in packages of 8.  What is the fewest number of each hotdogs and buns must Jerry buy so that he has the same number of each.

• 20
• 30
• 40
• 50

Tammy  needs erasers for her dry erase boards. Each eraser costs $0.79. How much will 9 erasers cost?

• $7.11
• $6.11
• $7.25
• $8.25