John has started a company where he manufactures and sells frames. Through a cost analysis, he has determined that his revenue function is defined to be r(x) = 246x 12x? and his cost function is
defined to be c(x) = 40 + 6x, where x represents the number of frames sold (in thousands).
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a. Let John's profit function be p(x) =
r(x) = c(x). If this is the case, write the function rule for p(x).