Answer:
Step-by-step explanation:
Umm, Wheres Tanner's graph? Please post it so that I could answer your question!! :)
Take the square root of 256 to find the side length of the mirror
√256 =16
the rectangles width is 16, it length is 2 inches longer
16+2 =18 so the length is 18
to find the area multiply them together
18x16=288
the area is 288 inches² :)