The answer is 30! In order to solve this question, you need to remember the order in which you do this type of equation. Going by the acronym PEMDAS (parenthesis, exponents, multiplication, division, addition, subtraction), you would have to do the multiplication first and then do the addition.

Another way to look at it is like this:

1 + 1 + 1 + 1 + 11 + 1 + 1 + 1 + 11 + (1 x 0) + 1

= 29 + 0 + 1

= 30