1.   Evaluate m - n if m = and n = .
    A. B.
    C. D.
    Hint

  2.   A drain pipe is five inches in diameter. If the sides of the pipe are thick, find the width of the opening in the pipe.
   
    A. inches B. inches
    C. inches D. inches
    Hint

  3.   Find the sum of .
    A. B.
    C. D.
    Hint

  4.   Find the perimeter of a rectangle whose dimensions are 12cm by
9cm.
    A. 42cm B. 43cm
    C. 43cm D. 42cm
    Hint

  5.   Five boxes are 3, 4, 4, 3, and 3 inches high. If these boxes were stacked one on top of another, what is the total height of the boxes.
    A. 25 inches B. 20 inches
    C. 30 inches D. 15 inches
    Hint



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