9. $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500

10. Solve Proportion

11. V = 16

12. A tower casts a 450 ft shadow at the same time that a 4 ft child casts a 6 ft shadow. Write and solve a proportion to find the height of the tower.

13. 4/x=6/450; 300ft

14. Four ounces of orange juice contains 50 calories. Fourteen ounces contains c calories. Write a proportion for the situation. Then solve.

15. 14/c = 4/50 ; 175 calories

16. The ratio of hydrogen atoms to oxygen atoms in water is 2:1. If an amount of water contains 341 trillion atoms of oxygen, how many hydrogen atoms are there ?

17. 682 trillion

18. The scale of a map is 2cm: 15km. Find the actual distance between two cities if they are 6 cm apart on the map.

19. 45cm

40. Which is the better buy? (Show each Unit Rate) 12.25 oz of Fruit Loops - $ 2.95 or 25.25 oz of Fruit Loops - $ 5.99

41. Either – Both are $0.24

42. In the ninth grade there are 320 students and 20 teachers. What is the student-to-teacher ratio?

43. X = 8 or -8

44. Give all solutions for x. 37 = 4| x | - 11

45. X = 12 or -12

46. Give all solutions for x. 13 = | 6x - 5 |

47. X = 3 or –4/3

48. Give all solutions for x. | x | + 12 = 5 | x | - 4

49. X = 4 or -4

50. Solve for h. A = bh

51. h = A/b

52. Solve for m. G =3rm

53. m = G 3r

54. Solve for y. 3x – 4y = Z

55. Y = z – 3z -4

56. Solve for B A = ½(B+b)h

57. B = 2A -b h

59. Solve for a. B = 1/3a - C

60. A =3(b + c) Or A = 3b + 3c

61. Give the following as an algebraic expression: "3 less than the product of 5 and a number"

62. 5n - 3

63. Give the following as an algebraic expression: “12 more than half a number"

64. 1/2n + 12

65. Simplify: 5x – 3 + 4x + 8 – 2x

66. 7x + 5

67. Name the Property: If a = b and b = c, then a = c.

68. Transitive Property

69. Simplify: [2(4x + 7) – 3] + [5(3 + x) + 2x]

70. Simplify: 15x + 26

79. $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000