<p>Hey i have about a 3.87 at a pretty competitive prep school. I am trying to bumb it up to a 3.9 for mid trimester grades. At 3.87, im not even in the top 10%, but our school doesnt rank and Penn's app doesnt even ask for the counsellors to estimate. Do you think my relatively low GPA will affect me that much if a) they're app doesnt aks for a ranking, and b) its a tough school? Thank for the help.</p>