Solve this equation.
-40-b + 6) = 4

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 slope of the line passing through a pair of points

What is the gcf of 20c^3-5c^4+30c^6