Use the key to answer the question.
The model on the left has 6 small white blocks and 1 long black block.
The model on the right has 5 small black blocks.
6 small white blocks = 6
1 long black block = -x
5 small black blocks = -5
6 + (-x) = -5
Solve for x.
-x = -11
x = 11
The answer is H.