If a monopoly can advertise and as a result the demand curve will become more inelastic, the monopoly A. should always engage in the advertising. B. should engage in the advertising until the demand curve becomes more elastic. C. will earn higher gross profit if it advertises. D. None of the above.

Customers arrive at rich dunn's styling shop at a rate of 3 per hour, distributed in a poisson fashion. rich can perform an average of 5 haircuts per hour, according to a negative exponential distribution.a) the average number of customers waiting for haircuts= customersb) the average number of customers in the shop= customersc) the average time a customer waits until it is his or her turn= minutesd) the average time a customer spends in the shop= minutese) the percentage of time that rich is busy= percent