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Let R(x), C(x), and P(x) be, respectively, the revenue, cost, and profit, in dollars, from the...

Let R(x), C(x), and P(x) be, respectively, the revenue, cost, and profit, in dollars, from the production and sale of x items. If R(x) = 6x and C(x) = 0.005x^2 + 2.5x + 40, find each of the following.

a) P(x)

b) R(150), C(150), and P(150)

c) R'(x), C'(x), and P'(x)

d) R'(150), C'(150), and P'(150)

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