1.   Find the square root
    A. B. 121
    C. 11 D.
    Hint

  2.   Evaluate when a = 5 and b = 20.
    A. B. 25
    C. -5 D. 5
    Hint

  3.   Evaluate when x = 15 and y = 15.
    A. -225 B. -15
    C. 15 D. 225
    Hint

  4.   To what set of numbers does belong?
    A. whole numbers B. irrationals
    C. integers D. rationals
    Hint

  5.   The area of a square is 100 square inches. Find the perimeter of the square.
    A. 40 in. B. 100 in.
    C. 10 in. D. 20 in.
    Hint