Help me pls pls pls :)

What is the approximate circumference of the circle shown below? 12.2 cm

How many inches of snow did any of you guys get last night?

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.