1.   Evaluate 3x + 2y if x = 3 and y = 7.
    A. 27 B. 5
    C. 23 D. 105
    Hint

  2.   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. 10 miles
    C. 1 mile D. 3 miles
    Hint

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

  4.   Evaluate y3 if y = 4.
    A. 12 B. 43
    C. 16 D. 64
    Hint

  5.   Evaluate j - k if j = 10 and k = 2.
    A. 8 B. 5
    C. 12 D. 20
    Hint



Glencoe
The McGraw-Hill Companies