Problem
A competitive firm has a short-run cost function c(y) = 2y^3 - 12y^2 + 20y + 17.
a) What is the firms marginal cost function?
b) What is the firms average variable cost function?
c) What is the firms average cost function?
d) What is the firms average fixed cost function?
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.