Who is Rahab from Bad Girls of the Bible and what is their importance?

Rahab lived in Jericho where she worked as a prostitute. One day, two Israelite spies show up on her doorstep and she agrees to hide them from the king's men. Rahab recognizes God through the men and becomes a believer. She then assists the men in escaping the city. When the leave, the men tell Rahab to put a scarlet cord in her window so that the Israelites will recognize her home and save her when the city is overtaken.
Rae is another reformed Bad Girl in the Bible. She comes to believe in God and turns away from her sinful ways. After the Israelites overtake the city and kill the other inhabitants, Rahab goes to live with the Israelites.