<p>If you try to remedy a grade with the remedial counterpart to the class (let's say you failed calculus, the counterpart would be Calculus I at a local community college) -- that will help your case, if you manage to succeed there.</p>
<p>If you failed an AP class but got a 5 on the AP test, then that may, to a lesser degree, help your case.</p>
<p>definitely repeat any D or F that you can; even if the two are averaged, it brings up your gpa. Adcoms have to have a good reason to admit anyone whose gpa and test scores are below the median for the class...</p>
<p>some schools like Princeton and the UC's don't look at Frosh grades.</p>