Question
For every novel John sells, he gets $3.90 as commission. He gets an additional $1.80 for every 4 novels sold. How many novels did John sell if he earned $60 in commission?
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For every novel John sells, he gets $3.90 as commission. He gets an additional $1.80 for every 4 novels sold. How many novels did John sell if he earned $60 in commission?