Pls help I am marking brainliest

How many days was the temperature above 90 degrees?

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.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?