Clay runs a small hotdog stand in downtown Chapel Hill. Clay can serve about 40 customers an hour. During lunchtime, customers randomly amive at a rale of 25 per hour. a. Clay is busy W. of the time. (Enter your response rounded to hwo decimal places.) b. The average number of customers waiting to be served is (Enter your response rounded to two decimal places) The average number of customers in the system ( e, waiting and being served) is (Enter your response rounded to two decima places) c. The average amount of time customers spend waiting to be served is hours. (Enter your response roundod fo two decimal places.) The average amount of tine customers spend in the oystem is hours. (Enter your response rounded to hwo docimal paces)