Help please:)) due soon

How to determine whether two known pairs of points are on the same line.

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

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.