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Mathematics, 09.11.2019 20:31 lucretiak74

Ashop owner bought 30 files and some diaries .he paid $82.50 for the files. each diary cost 10 times as much as a file. what was the cost of each diary?

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Ashop owner bought 30 files and some diaries .he paid $82.50 for the files. each diary cost 10 times...
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