7. The answer would be 7 democrats and 3 republicans. This is due to the fact that the democrats have a 7:3 ratio which means the ratio would also follow into the committee.
8. It's changed by becoming more powerful over time. This is since he/she can decide the agenda of the committee and what goes through.
9. It would be the legislative aide but he/she cannot make decisions as a delegate of the member.
10. The agency would be the US Department of Education due to the program being under their control.