2 1/4 as a single fraction

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 is the least common factor of 6 and 8

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)