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Question:

Sophie went to a candy store and purchased three fudge slices for $3.98 each. If she paid with a $20 bill, how much change did she receive?

A 8.06
Explaination

First multiply 3.98 by 3 to figure out the total cost of the fudge:
3.98*3=11.94
Then subtract this amount from 20 to get the amount of change:
20.00
−11.94
8.06