3. The purpose of the 17th amendment is that Senators are elected by popular vote. This is important because they are who represent the people within a state, people should choose who represents them.
4. Higher education changed woman's roles in society for it allowed them to become great thinkers and be 'active members' of society, meaning they were able to give proper input as well as do male roles/jobs in society.
5. I do not know, I also can not find any online