7:30am to 4:30pm is 9 hours. So it depends on how long of a break you are taking out of that as to what the actual answer is.
nine 16:30 - 07:30 = 09:00
730 days = 17,520 hours
12 hours
There are 60 minutes in one hour. Therefore, 730 minutes is equal to 730/60 = 12.16 recurring (that is, 12.16666...) hours or 12 hours 10 minutes.
734
7
Ten hours.
There are 730 hours in 1 month.
8 hours.
7
1960
6