Answer:
2 hours if they go to school.
10 hours if they dont go to school.
Explanation:
add up the hours.
9/2+5/2=14/2=7hours +7 hour of sleep= 14 hours.
if they go to school for 8 hours then add 8. then it =22 hours witch gives you 2 hours
if they dont go to school then you got 24-14 hours=10 hours.