### Instruction: Eleven rectangular 9-inch by 12-inch pictures hang on a wall. How many square inches of the wall's surface area are covered by the pictures?### Response: To find the total area covered by the pictures, I need to multiply the area of one picture by the number of pictures.
The area of one picture is 9 times 12, or 108 square inches.
So the total area covered by the pictures is 108 times 11, or 1188 square inches.