MY N A billboard designer has decided that a rectangular sign should have 5-t margins at the top and bottom and 2-ft margins on the left and right sides. Furthermore, the billboard should have a to area of 950 m pncluding the margins) Printed Region If a denotes the width (in feet) of the billboard (including the margina), find a function in the variable x giving the area of the printed region of the billboard Area, as a function of aw Determine the domain of the function for area Enter your answer using interval notation. Domain of the function