circumference is C = πd, d = diameter.
we know the diameter is 60, so one time around the track is just C = π60 which if you plug that in your calculator, we get C ≈ 188.4955592153876.
5 is common factor
also x
reverse distributive
ab+ac=a(b+c)
5x(x)+5x(4)=5x(x+4)
last one
We need to convert the equation of the circle to standard form only then we can find the radius and the center of the circle.

From this equation we can write:
Center of the circle is (-1,1) and the radius of the circle is 4.
Step-by-step explanation:
Aw poor thing :(. I'm so sorry, honey. Is there anything I can do? If you need to vent or talk about it you're always welcome to talk to me. I haven't seen my friends since March so I understand. If there is anything that I can do I will gladly do it if possible. Stay safe ❤️.