Percent Proportion Equation Percent of Change Percent

Percent Proportion & Equation Percent of Change Percent of Error Tax and Discounts Simple Interest 5 pt 5 pt 10 pt 10 pt 15 pt 15 pt 20 pt 20 pt 25 pt 25 1 pt

What percent of $90 is $9? 2

10% 3

What number is 20% of 35? 4

7 5

62 is 90. 5% of what number? 6

68. 5 7

Of the 60 books on a bookshelf, 24 are nonfiction. What percent of the books are nonfiction? 8

40% 9

Roman has 2 red pencils in his backpack. If this is 25% of the total number of pencils, how many pencils are in his backpack? 10

8 pencils 11

15 yards to 18 yards 12

20% 13

132 days to 125. 4 days 14

5% 15

Last school year the enrollment of Genoa Middle School was 465 students. This year the enrollment is 525. 16

12. 9% 17

Tara purchased a DVD player for $150. Six months later, the same DVD player was selling for $120. What was the percent of decrease? 18

20% 19

In one year, Braden’s height went from 60 inches to 63 inches. What was the percent of increase in Braden’s height? 20

5% 21

Estimated: 13. 5 lbs Actual: 15. 6 lbs 22

13. 5% 23

Estimate: 75 Actual: 126 24

40. 5% 25

George estimated that there were 315 students at a basketball game. The actual number of students at the game was 350. What was the percent of error of his estimate? 26

10% 27

In an experiment, a chemist estimated the amount of liquid in a beaker to be 52 milliliters. The actual amount of liquid in the beaker was 50 milliliters. What was the percent error? 28

4% 29

Dane estimated that there were 420 people at a concert with him. The actual number of people at the concert was 375. What was the percent error of Dane’s estimate? 30

12% 31

A haircut costs $20. Sales tax is 4. 75%. How much will the haircut cost all together? 32

$20. 95 33

American Eagle pays $56 for their brown parka. They add 25% to the price & sell it to the customers. Find the selling price. 34

$70 35

A pair of in-line skates is on sale for $98. If this price is discounted 9% , what is the final price of the skates? 36

$89. 18 37

Joe is buying a t-shirt for $12. 99, a pair of shoes for $59. 95, and sunglasses for $13. 50. If he has a coupon for 15% off his total purchase and sales tax is 6%, how much did he pay? Round your answer to the nearest cent. 38

$77. 88 39

Sara earns a 15% commission on furniture she sells. How much commision would she earn if she sells a dining room set for $850, a chair for $400, and a rug for $75? 40

$198. 75 – commision 41

How much simple interest will they pay? Principal - $300 Interest Rate – 4% Term – 6 months 42

$6 43

Victoria deposited $2500 into a savings account that pays her simple interest. The interest rate is 3%. How much interest will Victoria earn in 2 years? And what will her balance be? 44

Interest: $150 Balance: $2650 45

Tina took out a 6 year loan for $18000 to buy a new car. She has to pay 2% simple interest on the loan. How much will Tina have paid in all after the 6 years? 46

$20, 160 47

Leon borrowed $75 at an interest rate of 12. 5%. How much will Leon have to pay after 9 months if he makes no payments? 48

$82. 03 49

Pablo has $4200 to invest for college. If Pablo invests $4200 for 3 years and earns $630, what is the simple interest rate? 50

5% 51