1.   The expression 5(7 + 2) = 5(7) + 5(2) is an example of the
    A. Commutative Property of Addition.
    B. Associative Property of Multiplication.
    C. Distributive Property.
    D. Commutative Property of Multiplication.
    Hint

  2.   What is another way to write (6 + 7)x?
    A. 6(x) + 7(x) B. 6(x) × 7(x)
    C. 6 + 7(x) D. 6(x) + 7
    Hint

  3.   Simplify the expression 138n + 272n.
    A. 500n B. 310n
    C. 400n D. 410n
    Hint

  4.   Simplify the expression b + 14b.
    A. 14b2 B. 13b
    C. 14b D. 15b
    Hint

  5.   Write w + 6 + 17 + 3w in simplest form.
    A. 26w B. w + 26
    C. 4w + 23 D. 3w + 23
    Hint