8.5 hours
15 hours.
3 hours.
8 hours.
This would be 6.5 hours.
6 and 1/2
5-1/2
6.5 hours (6 hours 30 minutes) between 10am and 4:30pm
10:30 to 3:30 is five hours.
438
There are 21.5 + 24k hours, where k is an integer.
From 10:30 to 12:00 there are 1 1/2 hoursFrom 12:00 to 5:00 pm there are 5 hoursTotal 6 1/2 hours