I think you're reaching for the Race Card based on Heresay about the instructor.

You should, without race, challenge the course and specify that due to your lack of mathematics you do not think that should fail you; because of the requirements set forth by the guidelines (and show those). You know, the one's that say you can be deficient in one area and not another.

If that doesn't work, chalk it up as they think being that low on Mathematics is a serious issue to not get a scholarship, and walk away.