Your firm is considering adding a product line. The accounting department has determined that the cost function for this new product will be (a) = 330x + 3735 and the revenue function will be R(a) = 375x, where is the number of units sold. Additionally, the sales department has determined that you reasonably can expect to sell around 87 units. You must decide whether to go ahead with the new product line. Find the break-even quantity: Find the profit function: P()