Someone help me please​

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

5(-9w) put expression in distributive property

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.