(20 points) Call center A processed 1.2 million phone orders for a total of 2.4 million items. 50% of the orders are new customers and it takes 7 minutes to set up an order for a new customer. 50% of the orders are returning customers who agreed to have their credit card information saved, in which case it only takes 3 minutes to set up an order. It takes 2 minutes to process each item ordered. The practical capacity of all call center operators is 20 million minutes and total call center costs are 7.8 million.