practice

DISTRIBUTION

Which expression is equivalent to the algebraic expression below?

3(–2x – 1)

• x+2

• x-1

• -6x-3

• -6x-1

PROPORTION

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

CIRCUMFERENCE

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

PROPORTION

Megan surveyed a random sample of 60 students at her school and found that 42 of them ride the bus to school each day. If there are 320 students at Megan’s school, about how many of them ride the bus to school each day?

• 348

• 224

• 188

• 132

PERCENT

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

SOLVE FOR VARIABLE

4(x + 1) = -16

• -3

• -5

• -63

• -65

AREA

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

PROPORTION

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

PROBABILITY

Which of the following represents two dependent events?

• drawing a card from a deck, not replacing it, and drawing another card

• rolling a number cube and flipping a coin

• drawing a card from a deck, replacing it, and drawing another card

• rolling two numbers cubes

INEQUALITIES

Which inequality is true?

• -2 > -5

• -5 > -2

• -2 < -5

• -5 = -2