Ratio and Percent Review

Find the unit rate of one diaper if a box of 35 diapers costs $6.99.

• $244.65

• $1.00

• $6.99

• $0.20

Mr. Barrett bought a new battery for his car. The battery cost $72. Since batteries are a taxable item, he had to pay a sales tax of 7.5%. What was the total cost of the battery in dollars and cents?

• $79.50

• $5.40

• $77.40

• $66.60

Ralph buys a computer for $675. The sales tax rate is 6%. How much total did Ralph pay for the computer?

• 40.50

• 715.50

• 6.00

• 634.50

Write 8.25% as a decimal. 

• 0.0825

• 0.825

• 82.5

• 825

What percent of 24 is 18?

• 75%

• .75%

• 133%

• 4.3%

If 15% of a number is 30, what is the number?

• 100

• 150

• 250

• 200

What is 25% of 80?

• 20

• 30

• 15

• 40

What is 40% of 250?

• 200

• 100

• 60

• 150

A florist made wreaths to sell at a craft fair. She said the ratio of wreaths sold to the number of hours is 35:7. Based on this information, which statement is true?

• She sold 4 wreaths per hour

• She sold 5 wreaths per hour

• She sold 6 wreaths per hour

• She sold 7 wreaths per hour

The basketball team won 18 out of 24 games. What percent of the games did the basketball team win?

• 1.3%

• 75%

• 0.75%

• 65%