The costa family hiked a trial that was two miles in one direction how many feet was the hike round trip?

Since the costa family hiked two miles in one direction. You have multiply 2+2 to find the round trip. You get 4, but that isn't the answer because it is in miles not feet. You have to multiply 4 x 5280, because there are 5280 feet in one mile.  You get 21120 feet. Hope this helps. :-)

“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 .