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Mathematics, 05.01.2020 00:31 pandaniezzy

Lizzie buys 8 books and pays with a $50 dallor bill.
alex buys 3 books and pays with a $20 dallor bill.
lizzie and alex both get the same amount of change. how much dose one book cost?

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Lizzie buys 8 books and pays with a $50 dallor bill.
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