Answer: 8 hours
Explanation:
Given: profit for mowing lawns this week is
. You are paid
per hour and you paid
for gas for the lawn mower.
To Find: How many hours did you work this week.
Solution:
Total profit for mowing lawns this week

Hourly payment for mowing lawn

Amount paid for gas for lawn mower

Let total hours in week we worked

Now,
Total profit made


putting values,




Therefore we mowed lawns for
this week.