Question
For every colouring book Ethan sells, he gets $2.20 as commission. He gets an additional $1.60 for every 6 colouring books sold. How many colouring books did Ethan sell if he earned $68 in commission?
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For every colouring book Ethan sells, he gets $2.20 as commission. He gets an additional $1.60 for every 6 colouring books sold. How many colouring books did Ethan sell if he earned $68 in commission?