Who did you see at the party

Find the center and the radius of the circle with the equation: x^-2x+y^2+4y+1=0

The essay sea stars by barbara hurd. what point is the author making by comparing a sea star missing an arm to a human losing a limb?

When the author quotes the actress sarah brown as saying, i truly believe that this film gives an important message to audiences, the author is using a) repetition. b) a testimonial. c) an ethical appeal. d) the bandwagon method.