This will help with the latex.
https://artofproblemsolving.com/wiki/index.php/LaTeX
This will help you with the latex:
Not quite buh-jillion.... I'd say 4. LOL!
Welcome!
Congratulations! I'm sure you'll be able to make that 1000 a 2000 in no time! Good luck :D
You'll catch up! EP has been here for waaaaaaay longer than you!
Yes I am! :D
Try finding angle EBA, then finding D!