Mathematics

20 August, 22:09

Kelly went to a store to purchase a coffee pot. She will use a coupon for 20% off. She can calculate the cost before sales tax using the follow expression, c represents the original cost of the coffee pot. C - 0.2c

Which other expression could kelly use to calculate her cost before sales tax?

A. 0.8c

B. 1.2c

C. 1.8c

D. 80c

+3

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