How to say, homework, it doesn't matter if you want to cope. Of course, this is a bad habit. Better do it yourself. If you can't hire someone, it not only enriches yourself, but also helps your classmates. If it's for grades, you'd better do it yourself.

There will be no answer to this question. You should take photos and send them. People who have books will not answer, and those who can answer have no books. It's best not to ask the answer. Better do it yourself. If you don't know, ask the teacher first.