1.   What is the geometric mean between and 12?
    A. B.
    C. D.
    Hint

  2.   Find the value of y.
   
    A. B. 24
    C. 9 D. 2
    Hint

  3.   Find the value of x.
   
    A. B.
    C. 15 D.
    Hint

  4.   Which set of numbers is a Pythagorean triple?
    A. 9, 40, 41 B. 10, 15, 18
    C. 10, 20, 30 D. 8, 10, 12
    Hint

  5.   Find the value of x.
   
    A. 3 B.
    C. D.
    Hint