Unit 12 Review

What is the sum of -4.5 and 7.2?

• 2.7

• 1.5

• -2.7

• 3.5

What is the result of 6.3 - (-2.4)?

• 8.7

• 3.9

• 6.3

• 3.9

What is the product of -3.3 and 55?

• -181.5

• 181.5

• -165.5

• 165.5

• -2

• 2

• 4

• -4

• 28

• 112

• -28

• -112

A car travels 150 miles in 3 hours. What is the constant rate of change (speed) in miles per hour?

• 50 miles per hour

• 60 miles per hour

• 70 miles per hour

• 75 miles per hour

A recipe calls for 2 cups of flour for every 5 cups of sugar. What is the constant rate of change for the amount of flour to sugar?

• 2/5

• 5/2

• 2:5

• 5:2