Solve the problem.Suppose that f(x) = -x - 7 and g(x) = x - 18.(a) Solve f(x) > 0.(b) Solve g(x) > 0.(c) Solve f(x) ? g(x).
A. (a) x < -7; (b) x < 18; (c) x ? -12.5
B. (a) x > 7; (b) x > 18; (c) x > 5.5
C. (a) x < -7; (b) x < -18; (c) x ? 5.5
D. (a) x < -7; (b) x > 18; (c) x ? 5.5
Answer: D
Mathematics
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