Answer
Estimate: 80,000,000; Exact: 76,529,550
Work Step by Step
To estimate, we round 209,670 gallons to 200,000 and 365 days to 400. We find the estimated number of gallons of water polluted per year by multiplying 200,000 * 400 = 80,000,000. We find the exact number of gallons of water polluted per year by multiplying 209,670 * 365 = 76,529,550
