Well, honey, if we're talking about the time between 8:45 AM and 5:00 PM, that's a solid 8 hours and 15 minutes. So, grab a calculator if you need to, but that's the tea!
36
It is 9 hours.
6 hours and 30 minutes.
2.25 assuming both am or pm
15 hours and 20 minutes.
There are 9 and 1/2 hours between 8:45 am and 6:15 pm.
6 hours and 45 minutes.
6 hours and 30 minutes.
6 hours 30 minutes
840
8 and 1/2
7