Which of the following expressions can be used to find the area of the polygon? Select all that apply. An irregular shape that is a rectangle with a piece missing from the upper right corner. The bottom length is twenty feet. The left side width is nine feet. The top length is eighteen feet with a rectangle cut out of the upper right corner. The right side width is six feet. A. (9 × 20) – 6 B. (9 × 18) – (6 × 2) C. (9 × 18) + (6 × 2) D. (20 × 6) + (18 × 3) E. (20 × 9) – (3 × 2)