You worked 5.5 hours on Sunday + 12 hours on monday + 9.5 hours on Tuesday + 11 hours on Wednesday + 7 hours on Thursday + 10 hours on Friday + 8 hours on Saturday on average, hiw many hours did you work per day?

So to find the average, you need to first add up all the hours worked each day -

5.5 + 12 + 9.5 + 11 + 7 + 10 + 8 = 63

Then to find the average, divide 63 by the number of days you worked, which would be 7 days.

So 63 hours / 7 days = 9 hours