How do i solve this problem?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Which expression shows the sum of the polynomials with like terms grouped together