55 if you mean one half
5500 if you mean 50 times 110
60 if you mean 50 from 110
All you have to do basically is make up an equation of your own and then plug in the numbers inplace of the variables while still keeping the equation true.
The answer can be anything from : 8-4= 2+2
And all you had to do was simply plug in numbers to make it true. Hoped i helped!
A is the answer for this one
The answer is 40, take 21 from the last equation solved and add 8 to it then add 11