11. Prepare the journal entries to record the following transactions on Moon Company's books using a perpetual inventory system. (a) On March 2, Moon Company sold OMR 600,000 of merchandise to Star Company, terms 3/10, n/30. The cost of the merchandise sold was OMR 420,000. (b) On March 6, Star Company returned OMR 100,000 of the merchandise purchased on March 2. The cost of the returned merchandise was OMR70,000. (c) On March 12, Moon Company received the balance due from Star Company.