The Sterns initially drove some miles before they made a plan of driving set miles each day. Days 3, 4, and 5 are displayed on the graph. Determine the initial amount of miles the Sterns drove before making a plan.

miles

Aline graph should be used

“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 .