A batch of widgets costs $p+15$ dollars for a company to produce and each batch sells for $p(9-p)$ dollars. For

Source: Manhattan Prep

A batch of widgets costs $p + 15$ dollars for a company to produce and each batch sells for $p(9 – p)$ dollars. For which of the following values of p does the company make a profit?

A. 3
B. 4
C. 5
D. 6
E. 7

The OA is B

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