Answer:
in summary, George spends a total of 8100 minutes, or 135 hours, on homework in a school year, based on his average of 45 minutes each school night.
Explanation:
1. George has school five days a week.
2. In one week, there are 7 days.
3. So, George has 7 - 2 = 5 school nights each week (subtracting the weekends).
4. George's school year lasts for 36 weeks.
5. Therefore, the total number of school nights in a year is 36 x 5 = 180 school nights.
6. Since George spends 45 minutes on homework each school night, the total time he spends on homework in a year is 180 x 45 = 8100 minutes.