18. If rice is to be planted on a parcel of land 1,887 feet by 6,650 feet. How many acres are in the parcel? If 5 inches of water is pumped to cover the parcel of land, how many cubic feet of water will be needed? I if a pump is rated at 600 GPM, how long will it takes to pump the 5" of water over the parcel of land? You may receive an additional 10 points on your final by calculating the number of pumps needed to supply the water in 1 hours. Please write equations, substitute into equations and perform the calculations