Questions

1) 5(x – 8)

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2) 7(2x – 5y + 9)

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3) 9(x – 3y – 1)

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4) Simplify.

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5) 8(2x – 5y – 8z)

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6) 6n – n

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7) 11x + 2y + 4x – y

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8) 13m + 5m + 3n – 18m

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9) 5.5d + 1.2a – 3d + 4.2a

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10) Simplify the expression.

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11) x – 7 = 21

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12) m + 42 = 85

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13) 7 = a + 3.2

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14) 7x = 105

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15) Solve for “n”.

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16) 126 = 21b

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17) Leah helped raise money for her trip to Africa by bowling in a bowl-a-thon. Leah is to receive 0.35 for each pin she knocks down. Let m represent the number of pins knocked down. If she raised a total of $29.05, how many pins did she knock down? Write the problem as an equation and solve.

A) 0.35 + m = 29.05; m = 83

B) 29.05m = 0.35; m = 1032

C) 0.35m = 29.05; m = 83

D) m – 0.35 = 29.05; m = 29.40

18) If 2a = 5 then 3a = ?

A) 15

B) 15/2

C) 6

D) 3

19) Solve Ohm's Law V = IR for R.

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20) Solve the area equation A = bh for b.

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21) Solve the literal equation i = prt for r.

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22)

An airplane traveled 1782 miles in 4 1/2 hours. What is the airplane's rate of speed? Solve the literal equation (d = r t) for the "quantity of interest" (r), and then solve the problem.

(a) What is the literal equation that focuses on the quantity of interest?
(b) What is the airplane's rate of speed for the trip?

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23) Solve n – 6 < 13.

A) n < 19

B) n > 19

C) n < 7

D) n > 7

24) Solve 33 < y + 8.

A) y < 25

B) y < 41

C) y > 25

D) y > 41

25) Solve.

A) Choice A

B) Choice B

C) Choice C

D) Choice D

26) Solve.

A) Choice A

B) Choice B

C) Choice C

D) Choice D

27) Solve.

A) Choice A

B) Choice B

C) Choice C

D) Choice D

28) Solve 6t < 78.

A) t < 468

B) t < 13

C) t > 13

D) t > 468

29) Choose the correct graph for p > 6.

A) Choice A

B) Choice B

C) Choice C

D) Choice D

30) Choose the correct graph for the given inequality.

A) Choice A

B) Choice B

C) Choice C

D) Choice D

31) For the four questions below, answer them in the order given choosing from: addition, subtraction, multiplication, or division.

Click here to review the unit content explanation for Expressions, Variables, and Properties.

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32)

Give a counterexample to show that the closure property does not apply to division when deal with integers {... –3, –2, –1, 0, 1, 2, 3, ...}.

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