Solve the problem.The price P of a certain computer system decreases immediately after its introduction and then increases. If the price P is estimated by the formula P = 130t2 - 2500t + 6500, where t is the time in months from its introduction, find the time until the minimum price is reached.
A. 19.2 months
B. 38.5 months
C. 9.6 months
D. 12.5 months
Answer: C
Mathematics
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