Answer:
Parents.
Principal.
Step-by-step explanation:
In my family, power is divided according to seniority and responsibility. Since my parents are the oldest and the most responsible ones who look after the family, they have the most power in the family. This decision was made by the society itself. It is a social understanding that parents hold the most power in a family.
In my school, power is divided according to the institutional set up. The most powerful person at the top is the principal then the teaching faculties and finally the non-teaching staffs. This decision is normally made by our principal in accordance to the state board of education.