50 points and brainliest for the best fastest answer

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?