20 If f(x) = 15x + 4, find f(x) when x = 2.
A 90
B 21
C 34
D 25

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .