The number of fish in a pond decreased by $$ this year compared to last year. Last year, there were $$ fish in the pond.

How many fish are in the pond this year?

“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 .