What is the center of a circle represented by the equation (x−5)2+(y+6)2=42?

Anyone know? is appreciated! will mark brainliest if correct!

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e