Write 57/8 as a an improper fraction

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.

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

The radius of a sphere is 3 inches. which represents the volume of the sphere?