Minimum time needed to self-study AP Bio, AP Chem, AP Calc BC

<p>That sounds reasonable. Are you okay with BC? (Have you taken AB, and if so, what was your mark?).
Be warned: Though it is not the most important AP, don’t hold off environmental if you want a 5. It has one of the toughest curves in AP exams because too many students underestimate the course.</p>