Which graph represents the function F(x)=4/x

Let r = 3. what is the value of r + 58?

Ineed someone to me answer my question i have to have this done and knocked out

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?