She spent 20+10+15=45 in total
7:30-45 minutes=6:45. As a result, Jill starting her homework at 6:45 or C. Hope it help!
45-15= 30
30/3= 10
The answer will be 10 days
Have a nice day
Do it on a scientific calculator
We can set up a proportion to find this
60 x
--- = ----
100 1200
then we cross multiply and divide to solve
60 times 1200 is 72000 divided by 100 is 720
now we know his employer pays 720 out of 1200
we subtract to find out how much he pays
1200-720 is 480
fred pays 480