Suppose f(x) = 3x + 5 and g(x) = 5x + 2x. Selecting from the options available (enter A for A., etc.), match equivalent expressions. 1. fog 2. fof 3. go f 4. gog A. 15x2+6x+5 B. 125x100x3 + 30x + 4x C. 45x2156x+135 D. 9x + 20 Suppose that f is the linear function and g is the parabolic function in the graph below (click on the graph for a larger view). Find: (a) (fog)(2) = (b) (gf) (2) = (c) ()(2) = (d) (gg)(2) = (e) (f+g)(4) = (f) (f/g)(2) = Note: If the answer does not exist, enter DNE. 1,0