note: please make sure to properly format your answers. all dollar figures in the answers need to include…

note: please make sure to properly format your answers. all dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.60). all percentage values in the answers need to include a percentage sign (%). for all items without specific rounding instructions, round your answers to two decimal places, show both decimal places (5.06).\nhome heating oil is sold by the gallon. last winter, the romano family used 370 gallons of oil at a price of $2.56 per gallon. if the price increases 9% next year, what will their approximate heating expense be? round to the nearest ten dollars.

note: please make sure to properly format your answers. all dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.60). all percentage values in the answers need to include a percentage sign (%). for all items without specific rounding instructions, round your answers to two decimal places, show both decimal places (5.06).\nhome heating oil is sold by the gallon. last winter, the romano family used 370 gallons of oil at a price of $2.56 per gallon. if the price increases 9% next year, what will their approximate heating expense be? round to the nearest ten dollars.

Answer

Explanation:

Step1: Calculate the new price per - gallon

The original price per gallon is $2.56. The price increases by 9%. The new price per gallon $p$ is calculated as $p = 2.56\times(1 + 0.09)$. $p=2.56\times1.09 = 2.7904$.

Step2: Calculate the total heating expense

The family used 370 gallons. The total heating expense $E$ is the product of the number of gallons and the new price per gallon, so $E = 370\times2.7904$. $E=370\times2.7904 = 1032.448$.

Step3: Round to the nearest ten dollars

Rounding 1032.448 to the nearest ten dollars, we look at the ones place. Since the digit in the ones place is 2 (less than 5), we round down. So the rounded - off value is $1030$.

Answer:

$1030$