Problem
Cost functions, a part of the definition of profit, are useful to gauge the performance of the business. Suppose an economist estimated that the cost function of single-product firm as :
C(Q) = 10 + 3Q + 3Q2 + 3Q3
Define and compute the marginal cost when Q = 3.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.