The price-demand and cost functions for the production of microwaves are given as [math] and [math] where [math] is the number of microwaves that can be sold at a price of [math] dollars per unit and [math] is the total cost (in dollars) of producing [math] units.

(A) Find the marginal cost as a function of [math].
[math] =

(B) Find the revenue function in terms of [math].
[math] =

(C) Find the marginal revenue function in terms of [math].
[math] =

(D) Evaluate the marginal revenue function at [math].
[math] =

(E) Find the profit function in terms of [math].
[math] =

(F) Evaluate the marginal profit function at [math].
[math] =

Your overall score for this problem is