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The cost C, in dollars, to remove p percent of a certain pollutant from a pond is estimated by using the formula <br class="Apple-interchange-newline"><div id="inner-editor"></div>C=100000P100−P . According to this estimate,how much more would it cost to remove 90 percent of the pollutant from the pond than it would cost to remove 80 percent of the pollutant?
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