Your GPA is slightly on the low side so I think if it’s possible, you have to try raising your GPA because that’s an integral part of your application. Your standardized test scores are good, though. I think JHU is definitely a reach, and Georgia Tech seems to be a low reach. At this point, it depends on your recs and essay. Also, it seems that you do a lot of EC’s outside of school, but what about leadership in in-school clubs?
I’d appreciate it if you could chance me back! http://talk.qa.collegeconfidential.com/what-my-chances/2000649-chance-me-low-rank-common-ecs-cornell-harvard-wharton-etc.html#latest