In a lab, a substance is heated by 4°C each hour for 24 hours. What was the total change in temperature?

Find the slope of a line given the following two points

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 representation has a constant of variation of -2.5