1.   Simplify 2(x + 10).
    A. 12x B. 2x + 10
    C. 2x + 20 D. 20x
    Hint

  2.   Simplify –11(t + 1).
    A. 11t + 11 B. -11t + 1
    C. -11t – 11 D. 11t + 1
    Hint

  3.   Simplify 14(b – 10).
    A. 14b – 140 B. 14b – 10
    C. b – 140 D. 4b
    Hint

  4.   Simplify –20(z – 5).
    A. 20z – 5 B. -20z – 5
    C. -20z + 100 D. 20z + 100
    Hint

  5.   Serefina has a part-time job that pays $6.75 an hour. During spring vacation, she worked two hours on Monday, five hours on Tuesday, and four hours on Thursday. How much money did Serefina earn over spring vacation?
    A. $74.25 B. $67.50
    C. $81.00 D. $60.75
    Hint



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