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. 15 miles B. 1 mile
    C. 3 miles D. 10 miles
    Hint

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

  3.   Evaluate ab + 8 if a = 4 and b = 7
    A. 55 B. 36
    C. 60 D. 28
    Hint

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

  5.   Evaluate x2 + 2xy + y2 if = 4 and y = 7.
    A. 86 B. 78
    C. 121 D. 65
    Hint



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