Math Major / CS (Major/Minor)

Looks like the minor requires 6 courses, and the major requires 11 courses:
http://www.cs.rutgers.edu/undergraduate/minor.whtml
http://www.cs.rutgers.edu/undergraduate/BA_2011.whtml

You may want to try applying for co-op jobs:
http://careers.rutgers.edu/page.cfm?page_id=281

Depending on what you get for co-op or other jobs, it may help you make your decision later, based on how good your job prospects appear to be at the CS minor (as opposed to major) level, and how much you earn that can be put to an extra semester.