Final answer:
To convert 18 miles per gallon to feet per quart, divide by 4 to get miles per quart, then multiply by 5,280 to convert miles to feet, resulting in 23,760 feet per quart.
Step-by-step explanation:
To convert 18 miles per gallon to feet per quart, we need to consider the conversion factors between gallons and quarts, as well as miles and feet.
Since there are 4 quarts in a gallon, to convert miles per gallon to miles per quart, we divide by 4:
18 miles/gallon ÷ 4 = 4.5 miles/quart
Now, we need to convert miles to feet. There are 5,280 feet in a mile. So, we multiply:
4.5 miles/quart × 5,280 feet/mile = 23,760 feet/quart
Therefore, 18 miles per gallon is equivalent to 23,760 feet per quart.