Multiple Choice A homebuilder orders 10% more floor tiles than the original estimate of 170 tiles in case some tiles break while they are being installed. llow many tiles does the homebuilder order?

ASSIGNMENT

Find the sum or difference. (p. 774) 28. 5.98 + 3.72 29. 9 + 4.55 30. 3.4 — 1.9
31. 8.04 – 2.6

Algebra Basics Solve the equation. Check your solution. (Lesson 3.1) 32. 9 = 5n + 4 33. 6y + 1 =

19 34. 14 = 4w — 2 35. 9x – 7 = 20 Use the percent equation to answer the question. (Lesson 7.4)

36. What number is 60% of 135?

37. What percent of 120 is 78? 38.

What percent of 96 is 84?

39. 36 is 48% of what number?

40. Multiple Choice A homebuilder orders 10% more floor tiles than the original estimate of 170 tiles in case some tiles break while they are being installed. llow many tiles does the homebuilder order?

A. 153 tiles B. 180 tiles C. 187 tiles D. 1700 tiles

41. Multiple Choice There were about 23,000 movie screens in the U.S. in 1990. The number of screens increased to about 34,500 by 2001. By what percent did the number of screens change from 1990 to 2001?
F. 25% G. 33% H. 50% I. 250%