The street sign shown is a regular hexagon with side lengths of (7.6x + 10.4) centimeters. the perimeter of the sign is 737.28 centimeters. a. write and solve an equation to find the length of the street sign. b. there are 27 of these street signs throughout town. a special reflective border needs to be put around the edge of each sign so that it can be seen at night. how many meters of reflective border are needed?