Introduction. You state it in the introduction, so that you can state your claim first before the body paragraphs. You also should re word the thesis statement in the conclusion paragraph.
Friendship. In the novel, Huck and Jim are showing friendship by always defending one another. Huck made sure to find where Jim is and even gives away his 10¢ to get some information on where he was taken.
The web page serves a persuasive purpose would be google