Answer:
2 acres
Explanation:
For 2 1/4 hours he mows 1/2 of an acre
I know that 1/4 of an hour is 15 minutes so I added 2 hours and 14 minutes 4 times to get 9 hours.
Now I know 2 1/4 of an hour times 4 equals 9 hours
1/2 an acre times 4 equals 2
He mows 2 acres