I need help with my home work pls

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.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5