30 act
95% average over 4 years (my school does gpa weirdly)
decent ec and curriculars
out of state
Really nervous 
Might want to post this in the Michigan forum.
Which college at Michigan? Engineering & Ross - not likely. LSA, nursing, kineseology,- maybe. Music, art & architecture - depends on your portfolio and audition.
Which college? What are you hoping to pursue? What APs have you taken? Etc. Need more info.