A produce grower is purchasing fertilizer containing three nutrients,A,B and C. The minimize need are 160 units of A, 200 units of B, and 80 units of c. There are two popular brands of fertilizer on the market. Fast Grow, costing 4$ a bag, contains 3 units of A, 5 units of B, and 1 units of C. Easy Grow, costing 3$ a bag, contains 2 units of each nutrient. If the grower wishes to minimize cost while still maintaining the nutrient requires, how many bags of each brand should be bought?