It depends.  Colleges will not just look at your grades and GPA.  There are other factors that they include.  If you go to their website, they should have a brief outline of what they are going to look at (i.e. SAT scores, involvement in & out of school, etc..) Most likely, I believe, it's the essay that counts; it can either make or break you.  Plus, you have to consider that there are a lot of people you are competiting with.  If you haven't sent in the application yet, try and talk to your teacher and both of you guys may come up with a solution about how to improve your grades.