It may be differ from book to book, but it should be chapter 6, page 79.
Answer: Do you mean parallel? Like "The two lines in an equal sign are parallel to each other." ?
Explanation:
D.
It’s the first thing they say.
Answer: Martin Luther King Jr had experienced racism at a young age. So when he spoke on the subject he had an idea of what he was talking about and how to solve the problem.