Answer:
4 hours 52 minutes
Explanation:
I think the easiest way to handle these problems is to break them into chunks of time and then add up those chunks.
7:46am to 11:46 am is 4 hrs.
11:46 to 12pm is 14 minutes.
then 12:00 to 12:38pm is 38 minutes.
4 hrs + 14 minutes + 38 minutes = 4 hours 52 minutes