What is 12/36 in the simplest form? I’ll mark brainliest just make sure ur right

Answer this 30 points and brainliest!

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 volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.