How much should an 11 year old girl that is 5 feet way?
Anywhere between like 85 and 105 lbs. I was really bulky from swimming very competitively when I was that age, and I'm pretty sure I weighed 110, but I know I weighed more than the average girl your describing.
Around 95-135, depending on her frame :)
Well... assuming you mean "weigh"... she she weight between 90-110 Lbs.
There is no way you should be over 110
75-90 lbs I think.