Suppose a computer manufacturer has the total cost function C(x) = 82x + 3600 (in dollars) and the total revenue function R(x) = 382x (in dollars). (a) What is the equation of the profit function P(x) (in dollars) for this commodity? P(x) = (b) What is the profit (in dollars) on 322 items? P(322) = $ (c) How many items must be sold to avoid losing money? X = items