Help with Sending Test Scores

I need a little bit of help with deciding with standardized test scores I should send. I took the ACT three times, scoring a 35 the first two times and a 36 the third time. My first question is, should I send just the 36 or one of the 35’s as well. The reason I’m considering sending one of the 35’s is that I’m planning on being a math major, and I got a 36 M for my 35 but a 34 M for my 36. Second, I took the SAT just once and scored a 1580 on it (780 E, 800 M). However, I got a 16 on the essay (yikes, ik) and am unsure if I should sent the score at all. Just for some context, I am applying to schools like Stanford, Princeton, and Brown RD. Sorry for the long post, but I would appreciate some help. Thanks!