Joshua is driving to visit his friend who lives 165 miles away. He has driven 25 miles, and now he hopes to drive 40 miles per hour the rest of the way. How many more hours will it take Joshua to reach his friends house

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.