You need to be more specific than that.
The answer is $800 because (8000*10/100=$800)
By telling us who the Finches are, the author gives us a sense of where they fit in. At the same time, she gives us an understanding of how Atticus is something of a rebel because he does not take his expected role in society -- he doesn't act like part of the elite.
A synonym is kind, caring, or nice.