The manager of a department store wants to build a 600-square-foot rectangular enclosure on the store's parking lot to display some equipment. Three sides of the enclosure will be built of redwood fenThe manager of a department store wants to build a 600-square-foot rectangular enclosure on the store's parking lot to display some equipment. Three sides of the enclosure will be built of redwood fencing at a cost of $14 per foot. The fourth side will be built of cement blocks, at a cost of $28 per foot. Determine the total cost and the dimensions of the enclosure that will minimize the total cost of the building materials