3. for every $10 that mike saves, his parents give him $30.
a. what is the constant of proportionality?
b. if micah saves $150, how much money will his parents give
him?

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.