I am looking to get my MBA. While in college 9 years ago I didn't achieve a competitive GPA. My GPA ended up at 2.8. I am looking to enhance my chances by making better preparations prior to applying. I found some free online courses for pre-MBA courses online that go over Finance, Math, Economics, etc. I am thinking of taking these classes. I also want to prep for the GMAT with enough time as well. Has anyone taken these online courses? Should I prep for the GMAT first before taking the pre-MBA courses? I notice some people say that you need a knowledge of calculus. Is this necessary for the GMAT or is this something necessary prior to attending B-School?
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