Just so you know, Tufts does superscore ACT. Also, every college I have ever talked to, been to, or heard from has expressed the importance of GPA in the context of course load. They want to see that you took the most difficult course load and succeeded. Your senior year definitely is indicative of that and if you have an increasing trend, that is progressively getting more successful academically throughout your high school career, they will definitely consider that. Your test scores are certainly there. Your GPA may be a little concerning for Wash U and Tufts, but I think in context, your chances are a bit better. They do not expect you to be perfect, but 3.5 unweighted is a little low. They definitely consider GPA/course load in context more heavily than test scores. Your ECs are good and your senior schedule will help your chances. I would say yes to USC, but iffy for Wash U and Tufts. Chance me back?