A store pays $20 for a set of headphones. The store sells the set of headphones for $70. Your classmate says that the markup is 350% because$70/$20=3.5 Is your classmate correct?
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Home » Mathematics » A store pays $20 for a set of headphones. The store sells the set of headphones for $70. Your classmate says that the markup is 350% because$70/$20=3.5 Is your classmate correct?