The hours that each student attend school each day is 7 hours.
The first step is to convert minutes to hours.
60 minutes = 1 hour
6300 / 60 = 105 hours
The second step is to determine the number of days the students was in school in 3 weeks: 3 x 5 = 15 days.
Now, divide 105 by 15: 105/15 = 7 hours
To learn more about hours and minutes, please check: https://brainly.com/question/26290873
#SPJ1