SOLUTION: The Welzer's average phone bill increased from $16.65 to $19.98. What is the Percent increase.

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Question 305441: The Welzer's average phone bill increased from $16.65 to $19.98. What is the Percent increase.
Answer by london maths tutor(243) About Me  (Show Source):
You can put this solution on YOUR website!
phone bill increase : $19.98 - $16.65 = $3.33
Percentage increase : +%283.33%2F16.65%29%2A100%25+
= 20%