SOLUTION: the Waltzer average phone bill increased from 16.65 to 19.98. what percentage did it increase?

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Question 72561: the Waltzer average phone bill increased from 16.65 to 19.98. what percentage did it increase?
Answer by don vito(18) About Me  (Show Source):
You can put this solution on YOUR website!
It increased by 20 percent.