Calculus quiz

This is for a 18 question quiz (on mymathlab.com). The price I am willing to pay is ONLY if I get an A on it! It is 18 questions with a 150 minute (2.5 hours) time limit. There are NO redos!! You also can't just view it. Once it is opened it has to be completed. So, if you don't know calculus very, very well, please don't agree to do it. As I am currently failing and have to have an A on this assignment!!!