Please anyone answer this for me? sarah and Tara can complete their case loads together in 8 hours. if sarah did it by herself, it would take her 20 hours. how long would it take Tara by herself​

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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.