grace and her friends were to roll the two dice 100 times, how many of the 100 times could they expect to roll the same number on each die? (In other words, the outcome would be 1,1 or 2,2 or 3,3 or 4,4.)

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.