A diet is being prepared for the University of Arizona dorms. The objective is to feed the students at the least cost, but the diet must have between 1,700 and 3,900 calories. No more than 1,500 calories can be starch, no fewer than 450 can be protein, and no more than 270 calories should be fat. The varied diet is to be made of two foods: A and B. Food A costs $1.90 per pound and contains 700 calories, 607 of which are protein and 93 starch. No more than 2 pounds of food A can be used per resident. Food B costs $3.00 per pound and contains 1,300 calories, of which 1,000 are starch, 180 are protein, and 120 are fat Write the equations representing this information, (Leave no cells blank - be certain to enter " 0 " wherever required. Round your answers to 2 decimal places.)