1.   Rewrite the expression: 7 · (2n – 4)
    A. 2 middot; n – 28 B. 7 · n – 28
    C. 14 · n – 28 D. 14 · n – 4
    Hint

  2.   Find the missing step in the explanation of a Think of a Number trick.
   
    A. 5(n + 6) = 5n + 6 B. 5(n + 6) = 5n + 11
    C. 5(n + 6) = 5n – 11 D. 5(n + 6) = 5n + 30
    Hint

  3.   If n is some odd number, how would you write the next three consecutive odd numbers?
    A. n + 1, n + 3, n + 5 B. n – 1, n, n + 1
    C. n + 2, n + 4, n + 6 D. n + 1, n + 2, n + 3
    Hint

  4.   Find the sum of three consecutive numbers: n, the number that comes right before n, and the number that is 2 before n.
    A. 3n + 3 B. 3n + 1
    C. 3(n – 1) D. 3n
    Hint

  5.   Find a rule involving the sum of three consecutive odd numbers.
    A. the sum of three consecutive odd numbers equals three times the first number
    B. the sum of three consecutive odd numbers equals two times the sum of the middle and third number
    C. the sum of three consecutive odd numbers equals three times the middle number
    D. the sum of three consecutive odd numbers equals two times the middle number
    Hint



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