Please help will give brainlist!​

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

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

Can some one me with these questions