<p>-It's not really answerable. 1 or 2 can do it. Once I missed one math question and it went down to 770. So don't stress so much about 50 points. Some people stress out over a score increase of 50 points; that's the same as making 2 stupid mistakes.</p>
<p>I don't know the next two. general hints for geometry, as with anything: learn the material and practice. There's no way around it.</p>