Someone plz help I’m stuck

In the figure dhg fhe which statement is true by cpctc

What is the vertex form of f(x) = x2 + 6x + 3

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.