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

  2.   Evaluate if a = 9, b = 6 and c = 3.
    A. 5 B. 15
    C. 9 D. 11
    Hint

  3.   Evaluate b3 + 6 if b = 2.
    A. 14 B. 15
    C. 512 D. 12
    Hint

  4.   Evaluate x + 5y if x = 12 and y = 9.
    A. 57 B. 47
    C. 71 D. 153
    Hint

  5.   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. 40 B. 10
    C. 20 D. 5
    Hint



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