Please I’ve asked this question twice already..please.. Slope of metallic bond (YELLOW) =

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.

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

If the average of x,y and z is 15 what is their sum