I need help with classifying triangles

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

The difference between tax advoidance and tax evasion

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.