explosions

First time posting- I couldn't find a subforum for this so I apologize if I'm being redundant. So when I was in college I didn't think I wanted to go to grad school- so I didn't work very hard and my final GPA is something like 3.12 or 3.15. (That's my overall GPA- not sure how to calculate what the last two years were separately). So I passed the minimum requirement for a lot of schools.Unfortunately, I now have my heart set on the UW Evans School for Public Policy- their average applicant GPA is 3.5. If I do well on the GREs, do I have any hope? Or would I need to get a perfect score on the GREs (not gonna happen- my vocab scores are pretty high but I'm basically reteaching myself algebra right now). Or even, with that kind of score, would I have any hope at ANY grad school? What do you suggest? Thank you!