Answer:
234 miles a day
Explanation:
The whole trip was for 2 weeks (7*2=14 days).
Since 1 day from each week they took rest, they drove for (14-2(1)=12 days) 12 days.
So a total of 2808 for 12 days. The average is 2808 divided by 12 days:

The answer is 234 miles a day