1.   Evaluate 3x + 2y if x = 3 and y = 7.
    A. 5 B. 27
    C. 105 D. 23
    Hint

  2.   Evaluate 5k + if
k = 3, m = 20, and n. = 5.
    A. 20 B. 57
    C. 7 D. 19
    Hint

  3.   In physics, the number measures the force of gravity between two objects when a and b each stand for the mass one of the objects and d stands for the distance between them. Find the force of gravity when a = 5, b = 8, and d = 2.
    A. 20 B. 40
    C. 10 D. 5
    Hint

  4.   Evaluate y3 if y = 4.
    A. 43 B. 64
    C. 16 D. 12
    Hint

  5.   Evaluate j - k if j = 10 and k = 2.
    A. 20 B. 5
    C. 12 D. 8
    Hint



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