SOLUTION: Peter paid $12.83 for a DVD. The price of the DVD was $11.99. How much sales tax did Peter pay?

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Question 521570: Peter paid $12.83 for a DVD. The price of the DVD was $11.99. How much sales tax did Peter pay?
Answer by umnikmo(75) About Me  (Show Source):
You can put this solution on YOUR website!
12.83/11.99=1.07
1.07-1=0.07
ans: 7%