A light-year is a unit used to measure long distances in space.One light-year is

A light-year is a unit used to measure long distances in space.One light-year is approximately equal to 5.88 trillion miles. Inthe Andromeda Galaxy two star systems are 20 light years apart. Ifthe scale on the map of the Andromeda Galaxy is 3 cm; 4 lightyears about how far apart should the two stars be placed on themap?