I'm not positive about this, but I think the answer is 137500.
To find the area, multiply 12.5 times 11. Then set up a proportion to find the extra 10%.Β
12.5 x 11 =Β 137.5
137.5 Β 10
Β Β ? Β Β 100
137.5 x 100 = 13750
13750/0.10 = 137500
Hope this helps!! :)