Retaking a Pre-Calculus Class to Boost GPA

@happymomof1 I am taking AP Statistics next year. I am eligible to take that class after a C+ in pre-cal. My college major will be Molecular, Cell, and Developmental Biology. I need math past pre-calculus. I was supposed to get a B minus in the course but my math teacher altered the grading system at last minute. If I am allowed to repeat, I would do an online course over the summer and boost my GPA.
Thank you for your advice!