31260.8125
21625 hours divided by 24 hrs per day divided by 30 days per month 21625/24/30 = about 30 months
625
312.5
0.2
89.2857
25
25
1250 divided by 2 is... 625
This is not phrased well enough to give a meaningful answer. Are these two equations or one? If two, then 2 divided by 5 is .4, and 5 divided by 8 is .625. If one equation, then ordinarily, one would divide 5 by 8 first, getting an answer of .625, then you would take 2 and divide it by .625 and get an answer of 3.2.
625
625
8 divided by .5 = 16