Which is the definition of an acute triangle?

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.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Someone me what is the area of this figure? 18m 18m 8m 16m