Given that f(x)=|x| and g(x)=2x−8, calculate (a) f∘g(x)=
(b) g∘f(x)=
(c) f∘f(x)=
(d) g∘g(x)=

What is the value of x? enter your answer in the box. (cm)

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.

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?