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Mathematics, 06.07.2019 06:40 sassycutie523

Hector must complete 40 community service hours in order to graduate from the eighth grade. so far, he has completed of his hours by working at a food bank and 10% of his hours volunteering at a hospital. which expression can hector use to calculate the number of community service hours he has left to complete?

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Hector must complete 40 community service hours in order to graduate from the eighth grade. so far,...
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