Could someone help me?

1. Water is to be pumped from the three wells to meet demands in five towns in such a way as to minimize the surcharge costs. In the accompanying table, well capacities and town demands are expressed in gallons per hour (gph). Solve for minimum surcharge. Surcharge (cents per 100 gallons) Town Well Capacity 2 3 4 5 (gph) 10 19 4 16 400 3 15 18 7 600 11 6 22 13 8 700 Demand 300 200 500 350 350 (gph)