F(x)=x^2+9x+27 graphing form

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.

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

What is the value of x when x + 7 = 21?