What is the percent of increase heating oil, Mathematics

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The price of heating oil rose from $1.10 per gallon to $1.43 per gallon. What is the percent of increase?

The price of heating oil rose $0.33 ($1.43 - $1.10 = $0.33). To ?nd out the percent of increase, divide $0.33 through the original cost of $1.10; $0.33 ÷ $1.10 = 0.3; 0.3 is equivalent to 30%. If you chose c, you found the percent of increase within relation to the new price ($1.43) rather than the original price ($1.10).


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