Most creative ways to "pass" an exam?

Hello all,

In my last semester and have a final coming up for a class that is worth a lot. It's the last finance class I need in order to graduate. However, there is one problem and that is the professor had a heart attack a few weeks ago and has been absent, no lectures, no emails, nothing. We still have a final though and I feel woefully unprepared. I've been studying as much as I can but I really want to pass. It is open notes so I've written down formulas, practice problems step by step, etc. But what are other things I can do? The class has 4 people total and will be monitored by some other professor. So can't have my phone with me.