Question
Pierre folded 26 paper rabbits on the first day. Each day he did 7 more paper rabbits than the previous day. On the last day, he made 131 rabbits. How many days did he fold paper rabbits?
2 m

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Pierre folded 26 paper rabbits on the first day. Each day he did 7 more paper rabbits than the previous day. On the last day, he made 131 rabbits. How many days did he fold paper rabbits?