Answer:
28.2258 miles/gallon
Step-by-step explanation:
1. Open a Google Tab
2. Type "12 km/l to mpg" in the search bar
3. Press the enter put on your keyboard
4. Copy and paste answer
: ) Not being sarcastic
Mathematical explanation
12 kilometres = 7.45645 miles
1 liter = 0.264172 gallons