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Mathematics, 27.10.2021 08:30 jasperzhouzihe3018

Marshall bought 20 refills and sold them at $ 4 each. If it had cost $ 50 for the refills, what was his profit or loss percent?

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Marshall bought 20 refills and sold them at $ 4 each. If it had cost $ 50 for the refills, what wa...
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