1.   Solve y = -7 - (-15).
    A. 9 B. -22
    C. 8 D. 105
    Hint

  2.   Solve x = -9 - (-7).
    A. -2 B. -16
    C. 2 D. 16
    Hint

  3.   Solve z = -15 - 7.
    A. -8 B. 22
    C. 8 D. -22
    Hint

  4.   Evaluate x y if x = 8 and y = -5.
    A. 3 B. -13
    C. -3 D. 13
    Hint

  5.   The record high and low temperatures recorded in New York are 108°F and -52°F, respectively. What is the range of temperatures?
    A. -160°F B. -56°F
    C. 160°F D. 56°F
    Hint



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