Im a junior in high school. this year i only qualified for 1 AP class (US History). I want to study and take some other AP tests on my own since I have free time. What are some other AP tests that I can buy a textbook and study guide and get a 4-5 on it? plz be something related to math or science or something useful.
edit: I am willing to put in many hours of work, i just moved somewhere new and I have no friends atm