There are 9 and 1/2 hours between 8:45 am and 6:15 pm.
36
3.25 hours or 3 hrs 15 mins
2.25 assuming both am or pm
3 hours.
It is 9 hours.
14.08333
The total distance between the two locations is 845 miles. It will take about 12 hours and 45 minutes.
2..25
4 hours 45 minutes.
8:15 + 24k hours where k is an integer.
6 hours and 30 minutes.
8 hours and 15 minutes.