<p>Has anyone taken any of these? If you have how was it and how long did you need? I'm thinking about taking calculus BC or AP Chem this year. I might try to take some of the higher level math courses also.</p>
<p>bump........</p>
<p>I've been looking at those too! I love to hear from anyone who has completed one. They look pretty expensive...are they worth the money?</p>