Exercise 2 (2.0 points) Let C(x) be the total cost of producing a units of a particular commodity and p(x) is the unit price at which all x units will be sold. Assume p(x) and C(x) are in dollars. C(x)=x+2x+39 p(x) = -x - 10x + 4,000 a) Find the marginal cost when 27 units of commodity be sold. Explain the economic implications of your result. b) Find the number of units of that commodity in order to maximize profit. Find the number of units of that commodity to maximize profit