your math score will be a bit of a problem if you're going for the top-notched quant-heavy schools, schools such as columbia, wharton, booth to name a few. However, if you have some other ways to compensate for the math score, such as transcript (if you took a whole bunch of quant-heavy classes in college and got all A's), extracurriculars, work experience (as an ibanker or financial analyst, etc), you may be able to get away. Without knowing too much about you, this is what I can think of. The application itself is a hollistic one, and a Q44 can be compensated. I'd say anything below a 70 percentile in math is where you should really consider retaking.
So what it all comes down to is basically where you're thinking of applying/going, what you do for work, what your college (or even grad school) transcript looks like, what you want to do post-MBA.
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