3. A company is planning to manufacture and sell hair dryers. The price-demand and cost equations are estimated to be respectively; p(x) = 50 -0.2x , C(x) = 5x + 1700 where x is the # of hair dryers that can be sold at a price of $p per hair dryer and C(x) is the total cost (in dollars) of producing x dryers. (19 pts) a. Find the revenue equation. b. Graph the cost and revenue functions on the same coordinate system. (Do this as I instructed in class.) c. Find the break-even points and indicate on the graph the regions of loss and profit. d. Find the profit equation. e. Find the marginal profit at x = 150, include the correct units, and write an interpretation of the result