975
9 hours, 45 minutes
61/2 + 24n hours where n is an integer.
749
7:45 am to 6:15 pm is 10 hours 15 minutes (101/4 hours)
400 ÷ 60 = 6 hours 40 minutes
745 divided by 80 = 9.3125 hours or 9 hours 18 minutes 45 seconds
10 hrs
Three hours
745 milligrams = 0.745 grams
24 hours = 1 day so 400 hours = 400/24 = 16.66... days
Three hours