Explain why there is a difference between the time it takes for the moon to orbit earth and the length of the lunar month

Hi Sydney,

Question - Explain why there is a difference between the time it takes for the moon to orbit earth and the length of the lunar month.

Answer/Why: So for the moon to orbit the earth is approximately 27.3 days. Since earth has a orbital around the sun, moon hasn't finished its own cycle until the point where the orbit is at the same position with the sun.

Hope This Helps :)

your answer would be a. 12.5 kg