Key to Practice Midterm II

Problem 1
Invest $5,000 in the 4% account and $10,000 in the 5% account.

Problem 2
A.  x > 3
B.  x > 1/8
C.  -1 < x < 1

Problem 3
A.  0 < x < 4    (Graph not provided here)
B.  x > -1 (Graph not provided here)

Problem 4
A.  x < 3 and x > 1 (Graph not provided here)
B.  x < 0 or x > 5 (Graph not provided here)

Problem 5
A.  x = 3 or x = -7/3
B.  x = 5/3 or x = 1
C.  Contradiction (No Solution)

Problem 6
A.  3⁴
B.  10/(ab⁶)
C.  z⁸/x⁸
D.  -3x¹⁴
E.  x²⁷y⁹z¹⁸

Problem 7
Allow 11 players at the $5 course and 13 players at the $3 course.

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