0
Anonymous
(6.5+12k) hours where k is an integer.
21 hours
1275
9:30am to 5:30pm the same day is eight hours.
11 hours
8 hours.
9
Nine hours.
8 hours, 45mins
9 hours
Four hours and thirty minutes.
one hour
11hrs 30 minutes
12 hours.
From 9am to 6:30pm is 9 hours and 30 minutes.