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

2. 2 What percent of $90 is $9?

3. 3 10%

4. 4 What number is 20% of 35?

5. 5 7

6. 6 62 is 90.5% of what number?

7. 7 68.5

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

9. 9 40%

10. 10 Roman has 80 pencils in his backpack. 35% of the pencils are red. How many red pencils are in his backpack?

11. 11 28 red pencils

12. 12 Find the percent change: 15 yards to 18 yards

13. 13 20% increase

14. 14 Find the percent change: 132 days to 125.4 days

15. 15 5% decrease

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

17. 17 12.9% increase

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

19. 19 20% decrease

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

21. 21 5% increase

22. 22 Find the percent of error: Estimated: 13.5 lbs Actual: 15.6 lbs

23. 23 13.5%

24. 24 Find the percent of error: Estimate: 75 Actual: 126

25. 25 40.5%

26. 26 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?

27. 27 10%

28. 28 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?

29. 29 4%

30. 30 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?

31. 31 12%

32. 32 A haircut costs $20. Sales tax is 4.75%. How much will the haircut now cost with the tax?

33. 33 $20.95

34. 34 Tom paid $4.20 tax on a jacket. If the tax rate is 7.5%, what was the original cost of the jacket?

35. 35 $56

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

37. 37 $89.18

38. 38 Joe is buying a fancy calculator. He has a coupon for 20% off which saved him $17.29. What is the original cost of the calculator?

39. 39 $86.45

40. 40 Sara earns a 15% commission on furniture she sells. How much commision would she earn if she sells $1325 worth of furniture?

41. 41 $198.75 – commision

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

43. 43 $6

44. 44 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?

45. 45 Interest: $150 Balance: $2650

46. 46 Tina took out a 6 year loan for $18,000 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?

47. 47 $20,160

48. 48 Leon borrowed $3,500 for 9 months at an interest rate of 5%. How much interest will Leon have to pay?

49. 49 $131.25

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

51. 51 5%