Jack works at a local warehouse unloading boxes of material from trucks and then stacking them for distribution from the warehouse. Each box he unloads weighs 65 pounds. Each stack of boxes cannot exceed a total of 800 pounds. How many boxes can be in a stack?

“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 .