1.   Solve 3x = 18.
    A. 6 B. 21
    C. 7 D. 15
    Hint

  2.   The perimeter of a square is 4 times the length of a side. Use the equation
P = 4s to find the perimeter of a square whose side has a length of 6 inches.
    A. 12 in. B. 10 in.
    C. 36 in. D. 24 in.
    Hint

  3.   Solve x + 3 = 22.
    A. 25 B. 17
    C. 23 D. 19
    Hint

  4.   Solve m - 5 = 9.
    A. 15 B. 12
    C. 14 D. 13
    Hint

  5.   On a full flight from San Antonio to Los Angeles 28 people sat in first class. If 130 were on the flight, how many people sat in coach?
    A. 158 B. 102
    C. 108 D. 112
    Hint



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