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Mathematics, 22.10.2019 07:00 blackeyes7659

Gary is selling paperback and hardcover books at a yard
sale. he charges $2 for each paperback. he earned $10
in sales of hardcover books. he earned $20 selling books
at the yard sale. how many paperbacks did he sell?

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Gary is selling paperback and hardcover books at a yard
sale. he charges $2 for each paperback...

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