Recycling. Mack collects bottles and cans from trash cans to turn in at the recycling center. It takes him 1.5 min to prepare a large container for return and 0.5 min to prepare a small container. He has at most 30 min per day to spend cleaning containers, and he is allowed to return no more than 30 containers per day If he receives 10¢ for every large container and 5¢ for every small container, how many of each should he return in order to maximize his dally income? What is the maximum amount that he can make each day?
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