Please help with practice problem.

Speed & Velocity 3. Assume the earth moves in a perfectly circular orbit around the sun. The earth's orbital speed (around the sun) is known to be 30 kin/s. Light travels at a speed of hill]3 mfs in free space. Using this information, evaluate: I The distance between sun and earth 0 How much time it takes for light to travel from sun to earth b. Calculate the average velocity of the earth (while moving around the sun} over a duration of 1 year