Final answer:
To find out how much a gallon of gas costs when it is advertised at a certain rate per liter, we need to convert the rate to a per gallon basis. So, if gas is advertised at $4.29 per liter, a gallon of gas would cost approximately $16.22.
Step-by-step explanation:
To find out how much a gallon of gas costs when it is advertised at a certain rate per liter, we need to convert the rate to a per gallon basis.
First, we need to know how many liters are in a gallon. There are approximately 3.78541 liters in a gallon.
So, if gas is advertised at $4.29 per liter, we can calculate the cost per gallon by multiplying the rate per liter by the number of liters in a gallon: $4.29 x 3.78541 = $16.22. Therefore, a gallon of gas would cost approximately $16.22.