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Mathematics, 26.03.2021 18:50 rachanachannagiri

When Frank buys three packs of pens, he knows he has 36 pens. When he buys five packs, he knows he has 60 pens. What is the constant of proportionality between the numbers of packs and the number of pens?

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When Frank buys three packs of pens, he knows he has 36 pens. When he buys five packs, he knows he h...

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