a
37+33=70 out of 125 so 70/125= 56%
b
28+27=55 out of 125 so 55/125=44%
c
33+27=60 which is the amount of students who dont have chores you divide 33 which is the students who have a curfew by 60 to get 55%
d
no because the percentage found in part c is about the same as found in part a
