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Please help solve this word problem: The function f(x) = 180x models the cost, f(x), in millions of dollars, to remove x% of a river's

Please help solve this word problem:

The function f(x) = 180x models the cost, f(x), in millions of dollars, to remove x% of a river's pollutants. If the government commits $20 million for this project,

100 - x what percentage of the pollutants can be removed?

____________% of the pollutants can be removed.

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