1.   The equation where d represents the distance in miles
and t is the number of seconds between seeing lightening and
hearing thunder, tells how far away a thunderstorm is.
How far is it to a thunderstorm if you count 15 seconds between
seeing the lightening and hearing the thunder?
    A. 1 mile B. 15 miles
    C. 10 miles D. 3 miles
    Hint

  2.   Evaluate b3 + 6 if b = 2.
    A. 14 B. 12
    C. 512 D. 15
    Hint

  3.   Evaluate 7 × (a - 4) if a = 9.
    A. 28 B. 59
    C. 35 D. 63
    Hint

  4.   Evaluate x + 5y if x = 12 and y = 9.
    A. 71 B. 47
    C. 153 D. 57
    Hint

  5.   Evaluate 5k + if
k = 3, m = 20, and n. = 5.
    A. 20 B. 19
    C. 7 D. 57
    Hint



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