Algebra
posted by Monica .
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below.
37 said they drove alone.
38 rode in a carpool.
25 rode public transportation.
6 used both carpools and public transportation.
10 used both a carpool and sometimes their own cars.
6 used buses as well as their own cars.
5 used all three methods.

Thanks, is there a question here?