7th Grade Math Review

. If Michelle rollerblades around a circular track with a radius of 80 meters, how far does she skate? Use 3.14 for π. Round to the nearest tenth. 

• 251.2 m

• 502.4 m

• 12,352 m

• 20,096 m

A sprinter runs 400 meters in 54 seconds. What is the runner’s average running rate in meters per second? Round to the nearest tenth. 

• 8.5 meters per second

• 7.8 meters per second

• 7.4 meters per second

• 6.8 meters per second

Which expression is equivalent to the algebraic expression below?     3(–2x – 1)

• x+2

• x-1

• -6x-3

• -6x-1

A large pizza at Angelo’s Pizzeria has a diameter of 14 inches. What is the area of the pizza? Use 3.14 for π. Round to the nearest tenth.

• 44

• 122.7

• 153.9

• 615.4

A home improvement store normally sells 20-foot extension ladders for $225. This week the ladders are discounted by 20%. What is the sale price of the ladders?

• 180

• 165

• 60

• 45

A muffin recipe calls for 8 cups of flour and yields 24 muffins. If Natalie wants to make 60 muffins, how much flour will she need? 

• 180

• 24

• 20

• 3.2

4(x + 1) = -16

• -3

• -5

• -63

• -65

What is the product of the expression? -7(-3)

• -21

• -10

• 10

• 21

Stacy has 20 blocks.  Of the 20 blocks, 16 are cubes.  What percentage of the blocks are cubes?

• 75%

• 80%

• 120%

• 125%

What is the solution of the inequality
 x - 26 > 65?

• x > 39

• x < 39

• x > 91

• x < 91