某州立大学的学生账单系统，州内外的学生收费不同，州内每学分收费$75，州外为$200，每个学生账单上有学校名称，学生姓名，学分数以及账单总数-State University students in a billing system that charges different students within and outside the state, the state charges $ 75 per credit, out of state for the $ 200 bill each