N+5(n-1)=7 help me i dont get it

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.

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line

Solve for the equation. 4x - 13 = 2x + 9