Math 7 Advanced Review

How much simple interest is earned on an investment of $1,250 if the money is invested for 5 years at an annual interest rate of 4.5%?

• $1,531.25

• $1,306.25

• $281.25

• $56.25

The weight of an object on the moon varies directly as the weight of the object on Earth. A 90-pound object on Earth weighs 15 pounds on the moon. If an object weighs 156 pounds on Earth, how much does it weigh on the moon?

• 23 pounds

• 26 pounds

• 28 pounds

• 939 pounds

A muffin recipe calls for 4 cups of sugar and makes 36 muffins. If Amelia only wants to make 24 muffins, how much sugar will she need?

• 6 cups

• 3 3/4 cups

• 2 2/3 cups

• 2 1/2 cups

A sprinter runs 100 meters in 11.5 seconds. What is the runner's average running rate in meters per second? Round to the nearest tenth.

• 8.7 meters per second

• 9.5 meters per second

• 10.1 meters per second

• 11.5 meters per second

A video game that normally sells for $80 is on sale for $68. What is the percent of discount for the sale price?

• 18%

• 17%

• 15%

• 12%

Staples normally sells mechanical pencils for $6.50. This week the pencils are discounted by 25%. To the nearest cent, what is the amount of discount?

• $1.30

• $1.63

• $2.11

• $4.88

Mr. Heit drove 135 miles in 2.5 hours. What was his average speed in miles per hour?

• 50 mph

• 52 mph

• 54 mph

• 55 mph

Suppose a submarine is diving from a surface of the water at a rate of 80 feet per minute. Which integer represents the depth of the submarine after 7 minutes?

• 80

• 560

• -80

• -560

What is the simplified form of the algebraic expression shown below?

7w - 6 - 3w + 5

• 4w-1

• w+2

• w-1

• 4w-6

Which expression is equivalent to the algebraic expression below?

-4(3x - 5)

• -x-5

• -x-9

• -12x+20

• -12x-5