Mathematics, 07.11.2019 05:31 ian2006huang

cody, the owner of an e-commerce site, buys emerald pendants for $400 and then sells them
on his site for $840. what percentage is the mark-up?
write your answer using a percent sign (%).

Answers: 3

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cody, the owner of an e-commerce site, buys emerald pendants for $400 and then sells them
on h...