Jada invested three times as much money in mining shares as she invested in telecommunications shares. Mining shares pay a yearly return of 9%, and telecommunications shares earn 7% yearly.
Jada’s yearly income from the shares is $816. Find how much money Jada invested in each type of
share.

“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 .