The large rectangle is 9 in × 7 in = 63 square inches. The unshaded rectangle in the top right is 4 in × 6 in = 24 square inches. The shaded area = 63 - 24 = 39 square inches.

The concrete pad forms an L-shape that can be split into two rectangles. The vertical rectangle is 6 yd × 18 yd = 108 square yards. The horizontal rectangle is 8 yd × 6 yd = 48 square yards. Total area = 108 + 48 = 156 square yards.

The T-shaped room can be split into two rectangles. The horizontal top section is 12 ft × 4 ft = 48 square feet. The vertical bottom section is 5 ft × 8 ft = 40 square feet. Total area = 48 + 40 = 88 square feet.

The total wall area is 8 ft × 9 ft = 72 square feet. The window opening is 3 ft × 6 ft = 18 square feet. The paintable area = 72 - 18 = 54 square feet.

The L-shaped figure can be decomposed into two rectangles. The top rectangle is 8 ft × 4 ft = 32 square feet. The bottom rectangle is 4 ft × 4 ft = 16 square feet. Total area = 32 + 16 = 48 square feet.

The room can be divided into three rectangles. Top rectangle: 8 ft × 5 ft = 40 sq ft. Middle rectangle: 6 ft × 7 ft = 42 sq ft. Bottom rectangle: 9 ft × 4 ft = 36 sq ft. Total: 40 + 42 + 36 = 118 square feet.

The deck can be divided into two rectangles. The larger rectangle is 10 m × 8 m = 80 square meters. The smaller attached rectangle is 7 m × 4 m = 28 square meters. Total area = 80 + 28 = 108 square meters.