Percents and Simple Interest

When Lisa was born, her parents put $8,000 into a college fund account that earned 9% simple interest. Find the amount of interest earned after 18 years.

• $720

• $1,080

• $20,960

• $12,960

The population of your town increased within the past 10 years, from approximately 82,000 people to 87,000. What was the percent increase in population?

• 10%

• 5%

• 50%

• 6%

What number is 20% of 102?

• 204

• 122.4

• 20.4

• 20

12% of the cars that went through the car wash were blue. If 75 cars went through the car wash, how many of the cars were blue?

• 900

• 90

• 0.09

• 9

The movie theater has 250 seats. 225 seats were sold for the current showing. What percent of seats are empty?

• 10%

• 20%

• 80%

• 90%

Eric earned 60 points on his last test. If there were 75 possible points, what was his percent grade?

• 20%

• 40%

• 60%

• 80%

Mrs. Neary bought a leaf-blower that was 19% off the original price. If Mrs. Neary saved $40, what is the best estimate of the original price of the leaf-blower?

• $50

• $200

• $100

• $80

How much is the discount?

• $24

• $36

• $40

• $84

What is the selling price?

• $30

• $33

• $27

• $3

What is the interest earned?

• $95

• $125

• $105

• $135