7.5 hours
4 hours and 35 minutes.
It is 4 hours.
4
4.5
There are 16 hours from 4 am to 8 pm. 4 am to 4 pm is 12 hours, then 4 pm to 8 pm is another 4 hours.
9:45 pm to midnight is 2 hours and 15 minutes Midnight to 8:30 am is 8 hours and 30 minutes Hence the total is 10 hours and 45 minutes = 10 and 3/4 or 10.75 hours
There are 5 hours between 4 pm and 9 pm
It is seven hours from 9 AM to 4 PM.
21 hours
2 hours
3 hours
Two hours.