Your answer is 27 I pretty sure sorry if it’s wrong.
I think it's trying to get you to convert into liters. In which case a simple google search would have done the job...but I'll save you the time.
0.575
Because there is an absolute value in this equation around the x and and you are only adding something to that, we know that this will always be positive. This eliminates all the choices except for [1,infinity), the third option.