10 hours and 15 minutes.
10.5 + 24*k hours where k is any integer.
From 7 AM to 7:30 PM is a total of 12 hours and 30 minutes. This can be broken down to 12 hours from 7 AM to 7 PM, plus an additional 30 minutes.
10 and 1/2 hours
The duration of time between 7:30AM and 5:00PM is 9 hours and 30 minutes.
7
6
Ten hours.
8 hours.
10 hours and 45 minutes.
12 hours 30 minutes.
10 hours and 15 minutes.
9 hours
6 hours and 30 minutes
Ten Hours
10.5 + 24k hours where k is any integer.
10.5 + 24*k hours where k is any integer.