15. Presented below is information related to Blue Co. i. On April 5, purchased merchandise from Sara Company for OMR 18,000, terms 2/10, net/30, FOB shipping point. ii. On April 6, paid freight costs of OMR 700 on merchandise purchased from Sara. iii. On April 7, purchased equipment on account from MG. Co. for OMR 22,000. iv. On April 8, returned merchandise, which cost OMR 3,000, to Sara Company v. On April 15, paid the amount due to Sara Company in full. Instructions (a) Prepare the journal entries to record these transactions on the books of Blue Co. using a periodic inventory system. (b) Assume that Blue Co. paid the balance due to Sara Company on May 4 instead of April Prepare the journal entry to record this payment