<p>First question: Can I submit my app [without my essay] and then submit my essay and supplement later? If yes, would that mean I would have to send my essay in the mail?</p>
<p>Second question: I took the SAT II on Dec 6th, so if I want to send colleges my scores, would those scores be included? Or should I wait to send the scores? Or how would that work?</p>
<p>I know you can't submit it online without your essay. Some schools let you submit it without the supplement, but not all. I don't know about the paper version.</p>
<p>Wait until you know your scores to request them being sent. I think if you go to your subject test registration you can add the colleges to receive the scores when they're released, but since it's already after the period that you can add them free I'm not sure about that.</p>
<p>I'd recommend you email the admissions office and let them know that the score will be coming in late. Be sure to remind them that you took the SAT Subject Test in December.</p>