Im so confused right now my math teacher said that this is easy i don't understand (70+90=b) (b200=75)

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.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?