Question: ( 1 5 p ) A pizza restaurant is planning for a 7 - hour night delivery service. At night it gets requests for pizza

(15p) A pizza restaurant is planning for a 7-hour night delivery service. At night it gets requests for pizza deliveries every 30 minutes, and it estimates that on average a delivery can take 2 hours. The cost of a delivery person is $11 an hour and the cost of customer waiting is estimated at $80 an hour. A) How many delivery people would result in the lowest total cost? B) How long does it take a customer to get to the pizza delivered (waiting in line + service time)? C) How would the optimal total cost and wait time in the system change if the average service time was lowered to 60 minutes at a cost $35 per delivery person per hour?

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