Consider the system of equations 5x + y = 9 and 4x - y =18 what is the value of the x-coordinate of the solution

I’m which figure is point g an orthocenter

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.

How many terms does the polynomial x^2 y^2 have