While in Europe, if you drive 109km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 23.0mi/gal ? Assume that 1euro=1.26dollars.

To calculate the total cost of gas for driving 109km per day for a week, we need to convert kilometers to miles and calculate the number of gallons needed for the distance traveled. Here's how you can do that:

Step 1: Convert kilometers to miles:
To convert kilometers to miles, we can use the conversion factor 1 kilometer = 0.621371 miles.
So, 109 km is equal to 109 * 0.621371 = 67.770539 miles per day.

Step 2: Calculate the number of gallons used:
To find the number of gallons used per day, we need to divide the distance traveled in miles by the car's gas mileage.
Given that the car's gas mileage is 23.0 miles per gallon, we can divide 67.770539 miles by 23.0 miles per gallon:
67.770539 miles / 23.0 miles/gallon = 2.94654213 gallons per day.

Step 3: Calculate the total cost for a week:
To find the total cost of gas for a week, we multiply the number of gallons used per day by the cost of a liter of gas, and then convert euros to dollars using the given exchange rate.
Given that gas costs 1.10 euros per liter and the exchange rate is 1 euro = 1.26 dollars, we have:
2.94654213 gallons/day * 1.10 euros per liter * 1 liter / 0.264172 gallons * 1.26 dollars per euro.

Evaluating the expression, the total cost of gas for driving 109km per day for one week would be in dollars.