Don’t know how much feedback I’ll get on this but there’s a lot of people here so I’ll give it a shot.
I am probably going to get my MBA at nights while I continue to work but I have a couple of questions if anyone has gone through the application process or even better have their MBA.

How much working knowledge of business is needed for the GMATs?

It has been a couple of years since I have taken my last math class and I ended at precalc (didn’t need anything more difficult). Should I go take some more advanced math classes at a community college or some business math classes to brush up? If so what ones specifically?

What’s the best preparation strategy for the GMATs? Books, software, taking econ or business classes at a local CC?
Thanks for any help in advance.
Also any additional info will be greatly appreciated.