Answer:
132 ft²
Explanation:
If you combine the two triangles of the 'roof', you get a rectangle of 6x5.5=33, where 6 is calculated as 15-9 and 5.5 comes from 11/2.
Add to that the area of the rest of the 'house', which is a rectangle of 9x11=99
and the total area is 63+99 = 132.