Which function has two distinct real roots

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 is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

32a³b² 8ab² simplify the following expression.