Taking 6 AP’s next year, three this year,four honors past two years as school didnt offer aps until junior year. would taking the coursera course be relevant or is it pointless to mention it?
You can mention anything you want. Also if you want to review calculus take MIT Open Course 18.01 over the summer. MIT Open Course allows you to listen to all the freshman math lectures, do the same homework sets and tests as MIT students. Look at 18.01 (calculus) and 8.01 (Physics–Mechanics) and 8.02 (Physics E&M) and the beginning chemistry classes 5.XYZ Biology is 7.XYZ.
Here is the link:
Good luck. working hard on mathematics now will pay off later, if you are at U of Georgia or Georgia Tech.