-5 = b + 78 divided by 9

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.

What expression is equivalent to 42x-56y

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)