A lawn chair company, Leisure Furniture, manufacturers two types of deck and lanai reclining chairs. Contribution to profits and overhead for Model A chairs are $35 and for Model B chairs $26. One independent process cut and sews the weatherproof fabric. A second process bends and welds the metal tube frame. The fabric process requires 2.2 hours for Model A and 3.1 for Model B with 300 production hours available. The metal frame process requires 1.8 hours for each Model A chair and 1.3 hours for Model B with 250 production hours available. Storage space is limited, and the chairs require a lot of space. One Model A chair requires 12 cubic feet of storage space and a Model B chair needs 10 cubic feet of storage space. The warehouse adjacent to the factory has a total space for storing finished chairs of 150,000 cubic feet. Formulate this as a linear optimization model but do not solve (see Supplement D).