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

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

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

  4.   In physics, the number measures the force of gravity between two objects when a and b each stand for the mass one of the objects and d stands for the distance between them. Find the force of gravity when a = 5, b = 8, and d = 2.
    A. 20 B. 5
    C. 40 D. 10
    Hint

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



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