Mary decreased her time for the mile walk from 30 minutes to 24 minutes. What was the percent of change in Mary's time to walk a mile? (don't forget the % sign)

Mary decreased her time for the mile walk from 30 minutes to 24 minutes. What was the percent of change in Mary's time to walk a mile? (don't forget the % sign)

asked Sep 9, 2021 227k views

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