Question
For every story book Charlie sells, he gets $4.80 as commission. He gets an additional $1.30 for every 7 story books sold. How many story books did Charlie sell if he earned $89 in commission?
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For every story book Charlie sells, he gets $4.80 as commission. He gets an additional $1.30 for every 7 story books sold. How many story books did Charlie sell if he earned $89 in commission?