Ganthor

What are the most valuable experiences/concepts/books/skills to prepare oneself to succeed in a biz dev role?

Answers from some current biz dev professionals at rapidly growing startups would be awesome.

In terms of high school as well as university exams, what are some tips in tricks in order to ace (not perfect, but do exceptionally well) exams with minimal study time?

I assume the best way would be to study a little bit over a long term prior to the exam, but how would one go about successfully cramming the few days before, especially when the exam is focused on problem solving (not just memorization and BSing, more math problems).

PS In case you can't tell, I have a math exam tomorrow, and have barely studied (it's high school so it doesn't matter that much).