RC4000 Reaching Conclusions

(This is a metapuzzle. You'll need to use the answers to the other puzzles in order to solve this puzzle.)

The sun is slowly fading as you make your way back to your room, thinking about everything you've seen today. It's been an interesting break from the daily tedium, but you're beginning to wonder if you'll ever get back to your normal timetable...

How can you return to your regular classes?

You've learned a lot from this really confusing day, but it's time to put everything back in order.