what are the chances that I can get into rice with a 4.3 gpa (im a junior taking 4 ap classes) and an act of 24
I think your GPA is ok, but your ACT is very low. I suggest retaking the ACT in your senior year and aim for at least a 30. I suggest you use the Barron’s and Kaplan books (they got me from a 26 to a 32).
Apart from academics, what are your extracurriculars? I can’t really gauge how you’ll do because colleges also look at your EC’s.