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Janet bought g number of packs of gum. Each pack of gum costs $0.79. Write an expression that shows how much change she will get back from paying with a $20 bill.

A. 20 - 0.79g
B. 20 - 0.079g
C. 20 + 0.79g
D. 20 - 79g

1 Answer

5 votes
The answer is a because you need to subtract how many times you can buy gum buy the $20
User Sunil Aher
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