Can I finish pre-calculus 1 & 2 over the summer through the BYU Independent Study or any other online website?

I need to make up a pre-calculus credit and I need it over the summer. Is it possible to go through it through the BYU Independent Study over the summer? Or is there a different website that offers it over the summer for both semesters for credit on a high school transcript? Also, is the BYU Independent Study for Pre-Calculus fairly easy and be done right before summer ends? It's June 25th right now and I want to be able to be done with the pre-calculus course before the start of September or at least before the end of September for both pre-calculus 1 & 2.