When you live with your parents you have them to depend on, to take care of you and to support you financially. I’m not sure if that was the answer you were looking for but I hope I helped!
The purpose for including the affair was to have character development in the story. Abigail was willing to do anything, including the attempt to try and kill Goody Proctor in order to obtain John. This also made the foundation of Abigail, Goody Proctor, and John and how they were all significant in story development. If the writer had left of the detail of the affair, we wouldn't know why Abigail was trying to get rid of Elizabeth unless we made blind assumptions.
B. Add a hyphen between “twenty” and “seven.” Otherwise, it is written as two separate numbers, 20 and 7.
A. Delete the hyphen in “one-fourth.” You are counting the number of fourths, so a hyphen is not needed.
A. Add a comma after “trumpet.” This is called a serial comma, or an Oxford comma. Many people use it and some don’t. It is the comma that separates the second to last item in a list from the preposition before the last item.