Hi KidGMATClubber,
I applaud you for showing initiative to demonstrate to the Adcom that you can perform well in business courses. Unfortunately in this case, retaking these classes at a community college will not do much to improve your chances. When the Adcoms review your academic records, they take into account the difficulty of the courses and the academic rigor of the school. They may not be convinced that your performance from a community college course will translate to success at their institution. That said, I would evaluate these 3 courses that you didn't do well in within the context of the rest of your transcript. Are you able to demonstrate an ability to perform well in other quantitative courses? Was there something about these classes that led to your less than stellar performance? Did you have extenuating circumstances to explain the grades?
If you would like to discuss further and have us evaluate these courses in context with the rest of your courses and work experiences, please reach out to us for a free consultation at:
https://admissionado.com/free-consultation/Best,
Cindy