Chances of acceptance?

<p>Ok so I got an act composite score of 17 I plan on retaking it and actually studying. I have participated in 3 sports a year since my frosh year and have done marching band. Its now my senior year. My gpa is a 3.00-3.15.
Do you think I will get accepted to the university of iowa and iowa state right now? Or should I wait to retake the act?</p>