Answer:
96 square feet
Explanation:
First we find the area of the shaded area treating it like a normal rectangle.
A = lw
A = 15 x 13
A = 195 sq feet
Next we find the area of the smaller rectangle.
A= lw
A = 11 x 9
A = 99
To find the area of the shaded area, we subtract the smaller rectangle's area from the area of the larger shaded rectangle.
195 - 99 = 96
Therefore 96 square feet is your answer