First of all, you need to provide Harvard, which is more strategic in its approach, some evidence you handle the math in business school. You can do so via grades or you can do so via the GMAT. you can also do so via your work, but I don't think your requires the kinds of advanced math necessary to impress them. If you have low quant grades on your transcript, you probably would need a strong quant score on the GMAT or GRE. You may also be interested in "GMAT or GRE: Which is Best for You?"
I probably would recommend that you mention you are a single mother because it would give context to your impressive achievements.
My recommendation is that you apply R1 of next year and use the next several months to beef up your math skills and take the GMAT/GRE.
Co-Author of: MBA Admission for Smarties: The No-Nonsense Guide to Acceptance at Top Business Schools
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