Unit Review Percents

What is 60% of 75?

• 15

• 60

• 45

• 50

Last week Rosa 8 hours doing homework. This week she spent 25% less time doing homework. How many hours did she do homework this week?

• 2 hours

• 5 hours

• 4 hours

• 6 hours

A new backpack costs $35. You have a coupon for 30% off. How much will you pay?

• $24.50

• $10.50

• $45.50

• $32

An apple watch $340. If sales tax is 6.7% how much will you pay in total?

• $567.80

• $407.00

• $317.22

• $362.78

A donut shop increased their price for a box of donuts from $10 to $12. By what percent did the price increase?

• 10%

• 20%

• 2%

• 17%

75 out of 500 students reported their favorite halloween costume was a scary costume. What percent of the students liked scary costumes the best?

• 25%

• 15%

• 12%

• 85%

The rate is given as a percent (%). Before using it in the simple interest formula, you must first convert it to a______.

• fraction

• decimal

• ratio

• dollar amount

The simple interest formula is I=Prt. The P represents the principal. The principal is ___________________.

• the amount of money

• the percent interest for his year

• the rate

• the percent proportion

What does the "I" in the interest formula stand for?

• It

• Interest

• the Headless Iron Man

• Ignoramus

Emilio borrows $1200 from a bank with 8% simple interest per year. How much will he have to pay back total in 2 years?

• $150

• $192

• $1350

• $1392