Can someone provide an answer with an explanation ?

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Find the domain of the following expression: 1/(√x)-2

Which expression is rational? 6. , square root two, square root 14, square root 49