-7/11 is not -.63 with the three repeating
If u put it into a calculator it is -.63636363
( so the line should be over both the 6 and the 3, because that is what is repeating)
The answer to this question could be 44
The estimate is 10 times 11 it equals 110
Using Pythagorean’s theorem, the side length is sqrt(89)