Any inexpensive accelerated RA credit science course options?

[JWells247]

Hi all, 
I have a question. Sorry if it has been posted before. I need to get some prerequisites done such as General Biology, Microbiology, Physiology, etc but they need to be RA credits. I was wondering if there are any schools that offer courses faster than 8 weeks. And are inexpensive? The only fast ones I can think of are Doane - 8 weeks, Phoenix has a 7 week course. National University has 4 week courses, NOVA (Northern Virginia Community College) - 8 weeks. but these are pricey.

The next option that I can think of is to take self-paced courses and finish them in 4 weeks...but also pricey.
I found these schools to have self-paced science courses. 

-Southern California University of Health Sciences 
https://www.scuhs.edu/academics/sps/acce...e-listing/ 
-LSU 
-MCPHS 
-University of Oklahoma 
https://pacs.ou.edu/self-paced/

Any one know of inexpensive and quick RA accredited science course (need them to apply to a program.)

Thanks