Shara works 7/40 day, 5 days a week. Saul works 7/80 week each week. Find the number of hours each person works each week as a decimal. Which person works for the greater amount of time each week?
+57 7/40 a day means that Shara works (7/40)*24=4.2 hours a day.
Multiplying 4.2 by 7, we get 29.4 hours per week, so Shara works 29.4 hours per week
Saul works 7/80 week each week
There are 168 hours in a week, so we multiply 7/80 by 168 to get 14.7 hours per week
Shara works more than Saul each week
Shara works 29.4 hours a week and Saul works 14.7 hours a week
Let me know if I did anything wrong 
You did do something wrong 
Shara works 5 days a week so it should be 4.2*5 but you did 4.2*7
+57 Oops!
so the answer for Shara is actually
4.2x5 = 21 hours per week for Shara
+36915 7/40 day * 24 hr/day * 5 days = 21 hrs per week for Shara
7/80 wk x 7 day/week x 24 hr/day= 14 .7 hrs per week for Saul
