Solve.The profit made when t units are sold is given by 
for t > 0. Determine the values of t for which P < 0 (a loss is taken).
A. (-?, 12) ? (19, ?)
B. (0, ?)
C. [12, 19]
D. (12, 19)
Answer: D
Mathematics
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Graph the function as a solid curve and its inverse as a dashed curve.f(x) = 2x + 3 
A. 
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