Columbia Masters of Management Science & Engineering in IEOR

[stun7]

Hi,
I am a UCLA business economics undergrad, and would like to know if I retake the pre-req math classes after my undergrad for a better score, do they give a second consideration on the improvement? How would it affect my competitive admission?

(I am sorry to ask these kind of questions on here; the admission office seems to automate the answers when I emailed them, and the speakers just recite the generic answer and refer me back to emailing).
This is my first time trying to apply grad school. Many Thanks in advance if anyone with a slightest clue. Any thing helps. Would love to receive more opinions if you know anyone who knows about this topic.