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Mathematics, 09.10.2019 23:00 Gearyjames8

Ok so, adam had 91 dollars. if he spent 21 dollars on new books, what is the ratio of money he still has, to money he's spent. the answer is 10: 3, but i need a show your work example from somebody! !

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Ok so, adam had 91 dollars. if he spent 21 dollars on new books, what is the ratio of money he still...
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