Mathematics, 04.08.2019 04:10, MrTeriffic

The local bookstore is having a sole on used books . nate bought 3 hardcover books and 7 paperback books and spent 29.50. tia bought 2 hardcover books and 5 paperback books and spent 20.50. what is the cost of a hardcover book

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The local bookstore is having a sole on used books . nate bought 3 hardcover books and 7 paperback b...