I'm thinking about applying to Carnegie-Mellon on early decision but I'm not sure what my chances are. I got a 1540 on the new SAT (800 on math, 740 on verbal), a 33 on the ACT, 800 on the Math Level 2 Subject test, but also unfortunately got a 620 on the chemistry subject test. I also have maintained straight A's throughout high school. I am planning on applying to the Mellon College of Science for math or applied math. What are my chances?