A Border of Uniform Width Is Built Around a Rectangular

Multiple Choice

A border of uniform width is built around a rectangular garden that measures 19 ft by 36 ft. (see Illustration) . The area of the border is 804 ft ². Find the width of the border, y.

A) 7 ft
B) 4 ft
C) 6 ft
D) 5 ft
E) 37 ft