Question
Warren folded 29 paper swans on the first day. Each day he did 10 more paper swans than the previous day. On the last day, he made 149 swans. How many days did he fold paper swans?
2 m

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Warren folded 29 paper swans on the first day. Each day he did 10 more paper swans than the previous day. On the last day, he made 149 swans. How many days did he fold paper swans?