Suppose that there are two segments to the market for rental cars. The demand for rental cars by business travelers is Qb = 35 - 0.25P , and the demand for rental cars by vacation travelers is Qv = 120 -1.5P. (As (most of the time) in class, rental cars should be treated as perfectly divisible. For example, one might have 3.25 cars.) Graph the market demand curve. Be sure to provide numerical coordinates for any particularly key point(s) on this demand curve. Suppose that the current price is P = $40. What is consumer surplus.