1.   The temperature f(x) of water in a lake in degrees Fahrenheit is estimated by the function shown below, where x is the depth in feet of the water. What would be the temperature of water 30 feet below the surface?
   
    A. 71.25°F B. 111°F
    C. 33°F D. 63°F
    Hint

  2.   Express 45,280,000 in scientific notation.
    A. 4.528 × 10-7 B. 4.528 × 106
    C. 45.28 × 106 D. 4.528 × 107
    Hint

  3.   Simplify
    A. B. 5t3u3v4
    C. D.
    Hint

  4.   Find the difference -18 - 4.
    A. 22 B. -22
    C. -14 D. 14
    Hint

  5.   Find the difference |-25| - (-32).
    A. 7 B. 57
    C. -57 D. -7
    Hint

  6.   Evaluate m - 3.5 if m = -2.1.
    A. 5.6 B. 1.4
    C. -5.6 D. -1.4
    Hint

  7.   Solve
    A. a = 19 B. a = 5
    C. a = -6 D. a = 29
    Hint

  8.   Find the range of {5, 21, 2, 14, 13}.
    A. 19 B. 13
    C. 65 D. 14
    Hint

  9.   Find
    A. B.
    C. D.
    Hint

  10.   Simplify the expression 8 (a + 2b) – 7b + 6 (3ab).
    A. 26a + 3b B. 152a – 88b
    C. 4a – 6b D. 26a – 6b
    Hint

  11.   Solve 6z > 39.
    A. {z | z < 234} B. {z | z > 234}
    C. D.
    Hint

  12.   Is the relation shown in the graph a function? Why or why not?
   
    A. Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line.
    B. No, the relation contains the ordered pairs (0, -1) and (3, -1).
    C. No, the relation contains the ordered pairs (3, -1) and (3, 2).
    D. Yes, the relation contains very few ordered pairs.
    Hint

  13.   Which is the graph of -4 and
    A. B.
    C. D.
    Hint

  14.   is a real number and and is a real number and x<3}. Which is the graph of
    A. B.
    C. D.
    Hint

  15.   is a real number and and is a real number and Which is the graph of
    A. B.
    C. D.
    Hint

  16.   What is the value of cell B2?
   
    A. 21 B. 27
    C. 12 D. 5
    Hint

  17.   What is the value of cell D4?
   
    A. 540 B. 1620
    C. 1840 D. 15
    Hint

  18.   If a = –5 and b = 7, what is
    A. –76 B. 145
    C. –174 D. –114
    Hint

  19.   Simplify
    A. B.
    C. D.
    Hint

  20.   Graph the solution set of
    A. B.
    C. D.
    Hint



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