I'm no art genius but I as long as you take as many technical classes from now until then, and you show your best pieces in your interview portfolio it won't be a huge deal. I think in the economy we are in right now, the quality is more important than the quantity or technique. Good Luck!
It's c (80%). To figure it out, you can divide 42 by 206 (42/206) to figure out what percentage he has read already. You should get 20% for that. Then you can subtract 20 from 100 to find out the percentage he has left...