Sergio drives 186 miles to visit his parents’ house. After a few days, he drives home. He visits them twice a year. How many total miles does he drive on the two round trips?

To find the total miles Sergio drives on the two round trips, we first calculate the distance for one round trip.

1. One way to his parents’ house: 186 miles
2. Round trip (to and from): 186 miles × 2 = 372 miles

Since he visits them twice a year, we multiply the round trip distance by 2:

3. Total miles for two round trips: 372 miles × 2 = 744 miles

So, the correct answer is 744 miles.