6
1
4.5 hours between 1:30pm and 6:00pm
6
6 and 1/2
2 hours.
6 hours.
From 7 a.m. to 1:30 p.m. there are 6 hours and 30 minutes.
There are 10 + 24n hours where n is an integer
There are 14 hours between 6 am and 8 pm.
Two hours.
There are 6 hours between 8 am and 2 pm.