River Pollution In a study of U.S. rivers, 693,905 miles
Chapter 11, Problem 11.1.28(choose chapter or problem)
River Pollution In a study of U.S. rivers, 693,905 miles of river were studied. According to the U.S. Environmental Protection Agency, it was found that 36% of the total miles of river studied had impaired water quality. How many miles of rivers had impaired quality?
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