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Manuel has four pieces of bubble gum. His friend gives him nine more pieces. By what percent has Manuel's amount of bubble gum changed? **STEP BY STEP EXPLANATION PLEASE AND THANK YOU!** REMINDER: THIS IS PERCENT OF INCREASE OR DECREASE:)

1 Answer

14 votes

4 + 9 = 13

13 / 4 = 3.25

325% of original price

325 - 100 = 225%

225% increase