In a two-digit number the units digit is three less than the tens digit. if the digits are reversed, the sum of the reversed number and the original number is 121. find the original number.

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.

Write the fraction or mixed number and the decimal shown by the model

Which inequality has a dashed boundary line when graphed ?