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Mathematics, 12.02.2020 05:42 babygirl77733

There are 9 pens in a pack. ms ochoa buys 9 packs. after giving her student some pens she has 27 pens left. how many pens did she give away?

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There are 9 pens in a pack. ms ochoa buys 9 packs. after giving her student some pens she has 27 pen...
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