Find the value of x round to the nearest tenth

Anyone know? is appreciated! will mark brainliest if correct!

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.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?