Which expression is equivalent to -3(2b + 9) + 5(-5b + 6)? a. -23b + 3

b. 3b - 31

c. -31b + 3

d. -11b + 3

“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 .