A recycling company has three sites to process three types of products; paper, plastic, and aluminum. Each site can process a maximum of 7000 lbs./week of any product (Note: In real life, rarely this type of situation is balanced.) The processing cost per pound of each product is shown in the table below. Each week, 7500 lbs. of paper, 5800 lbs. of plastics, and 8000 lbs. of aluminum must be processed. Explain the optimal total product distribution to be recycled.