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Welcome to the article 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. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!

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 number of packs and the number of pens?