All sides of quadrilateral ABCD are tangent to circle P what is the perimeter of the quadrilateral below

Please help

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.

Which of the following tables represents exponential functions?

Can someone check if i did this correct. it’s number 4 if you’re wondering.