74. Always There Wireless is wireless monopolist in a rural area. There are 2010 customers, each of whom has a monthly demand curve for wireless minutes of O' = 200 - 100 P. where P is the per-minute price in dollars. The marginal cost of providing the wireless service is $0.25 per minute. If Always There charges $0.25 per minute, how large of a fixed monthly fee can it charge and still persuade customers to buy their service? A) $200 B) $153.13 C) $306.25 D) $175 75. Suppose the daily demand for Coke and Pepsi in a small city are given by Of # 90-100 Pc + 400 (P. - P.) and Q - 90 - 100 P, + 400 (Pc - Pr) where Qe and OF are the number of cans Coke and Pepsi sell, respectively, in thousands per day. P. and P, are the prices of a can of Coke and Pepsi, respectively, measured in dollars. The marginal cost is $0.45 per can. If P.= $0.75, what is Coke's demand function? A) Q. = 90 -400 P. B) Q. = 390 - 500 P. C) Q. = 390 -400 P. D) Q. = 465 - 400 P. 76. Suppose a good has a demand curve given by Q) - 20 -8 P. What is the price elasticity of demand if the price is $2? A) 4 B) -8 C) 1/2 DJ -1/2