1.   Write an algebraic expression to represent ''the sum of 6 and three times a number squared.''
    A. 6 + 3x2 B. 6 + 3x
    C. 6(3x)2 D. 6(3x)
    Hint

  2.   Name the property illustrated by the statement below.
If 5n = 15, then 15 = 5n.
    A. reflexive property of equality B. substitution property of equality
    C. symmetric property of equality D. transitive property of equality
    Hint

  3.   Solve 18 + a = 36.
    A. -18 B. -2
    C. 18 D. 54
    Hint

  4.   Solve 7(2k + 4) - (3k + 1) = 49.
    A. 4 B. 2
    C. 1.8 D. 1
    Hint

  5.   The formula for the area of a trapezoid is Solve the formula for h.
   
    A. B.
    C. D.
    Hint