Question
Mark folded 28 paper hearts on the first day. Each day he did 4 more paper hearts than the previous day. On the last day, he made 76 hearts. How many days did he fold paper hearts?
2 m

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Mark folded 28 paper hearts on the first day. Each day he did 4 more paper hearts than the previous day. On the last day, he made 76 hearts. How many days did he fold paper hearts?