Chapter 2 Review: Percents

Sarah wants to buy new pillows for her room. Which store offers the best buy on pillows?

• Store A

• Store B

• Store C

• Store D

The graph shows the attendance at a summer art festival from 2008 to 2013. If the trend in attendance continues, which of the following is a reasonable prediction for the attendance in 2017?

• Fewer than 200

• Between 500 and 600

• Between 700 and 800

• More than 800

At their annual car wash, the science club washes 30 cars in 45 minutes. At this rate, how many cars will they wash in 1 hour?

• 40

• 45

• 50

• 60

The cost of Ken's car wash was $23.95. If he wants to give his detailer a 15% tip, about how much of a tip should he leave?

• $2.40

• $3.60

• $4.60

• $4.80

Cody has $700 in a savings account that pays 4% simple interest. What is the amount of simple interest he will earn in 2 years?

• $5.60

• $56

• $560

• $756

Mr. Cooper asked his students whether they prefer to go to the aquarium or the planetarium for a field trip. The table shows the results. Suppose the rest of the class had no preference. What is the ratio of students who have no preference to the students who prefer to go to the aquarium?

• 1:5

• 1:4

• 1:3

• 1:2

In Nadia's DVD collection, she has 8 action DVDs, 12 comedy DVDs, 7 romance DVDs, and 3 science fiction DVDs. What percent of Nadia's DVD collection is comedies?

• 25%

• 30%

• 35%

• 40%

A salesman needed to sell a four-wheeler. He priced it at $3,500 the first day it was on the market. The second day he reduced the price by 10%. What was the price of the four-wheeler after this reduction?

• $3,850

• $3,490

• $3,150

• $3,000

At a middle school, 38% of all seventh graders have taken swimming lessons. There are 250 students in the seventh grade. How many of them have taken swimming lessons?

A wrestler competes in 25 matches. Of those matches, he wins 17. What percent of the matches did the wrestler win?