If f(x)=3x+10x and g(x)=5x-3, find (f+g)(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.

Asphere has a diameter of 10 in. what is the volume of the sphere?

What function has a range {yly< 5}? question on picture above^