MacBeth Act III

Why does MacBeth have Banquo killed? MacBeth fears Banquo’s children will end up on the throne and he doesn’t want that to happen.
Why does MacBeth hire murderers to kill Banquo? He is already guilty enough from having killed Duncan and doesn’t want to have more guilt by killing his friend, Banquo.
How does MacBeth feel with his new found power? He is very insecure about one of his enemies taking it from him.
What happens when the murderers try to kill Banquo and his son? They kill Banquo, but let his son escape.
What does the ghost of Banquo do to MacBeth’s paranoia? It makes him completely insane. He knows he can never be free of the guilt connected with killing his friends.
How does Lady MacBeth make him feel better after seeing the ghost? She attempts to get him to go to sleep.