my GPA and SAT for admission into Columbia?

<p>I have a 3.5 GPA and an SAT score of 2340 (i've only taken the SAT once)... I also do extracurriculars such as crew (rowing), music, and i'm the leader of the asian diversity group at my school. My GPA is low, primarily because I had a bad transition from middle school to high school (i went from a low-expectation middle school to an extremely competitive high school) and my freshman year GPA has brought everything else down. </p>

<p>What are my chances of getting into schools like University of Pennsylvania, Columbia, Harvard, Yale, Stanford, etc.?</p>

<p>Thank you!</p>