Astore sells two types of copy machines: compact (low capacity) and standard (which takes more space). the store can sell up to 90 copiers a month. a maximum of 1080 cubic feet of storage space is available. a compact copier requires 6 cu. ft. of storage space, and a standard copier requires 18 cu. ft. the compact and standard copy machines take, respectively, 1 and 1.5 sales hours of labor. a maximum of 99 hours of labor is available. the profit from each of these copiers island $80 respectively. what is the maximum profit