All good business programs want applicants to have at least two years of work experience after receiving the bachelor's degree. They make exceptions for foreign students and for older students who worked several years before coming to Hollins.
Some business schools have strong quantitative programs and they require even more math.
You may also want to take more statistics. M.B.A. programs tend to accept leaders. Performing very well on the GMAT is absolutely essential to getting into any business school. Performance on graduate exams is often similar to performance on SATs, so it is imperative to remedy any weaknesses you had on your SATs. Buy GMAT preparation books early in your sophomore year and test yourself repeatedly.