Rescind chance???

<p>I was accepted to Vandy with a failing grade in AP Calc on my mid-year report. Since then, that class has dropped about 8 points. It is an extremely difficult class for me, and I regret taking it. I have maintained my other classes with some going up 3-5 points, while some went down 1-3 points. What is my chance of being rescinded? Should I contact Vandy early on and explain my situation? If so, how? E-mail, phone, etc?</p>

<p>Thanks very much for your comment. I'm really worried about this.</p>