This information relates to Olaf Co.
1. On April 5, purchased merchandise from DeVito Company for $18,000, terms 2/10, net/30, FOB shipping point.
2. On April 6, paid freight costs of $820 on merchandise purchased from DeVito Company.
3. On April 7, purchased equipment on account for $30,000.
4. On April 8, returned some of April 5 merchandise, which cost $2,800, to DeVito Company.
5. On April 15, paid the amount due to DeVito Company in full.

Instructions
(a) Prepare the journal entries to record these transactions on the books of Olaf Co. using a periodic inventory system.
(b) Assume that Olaf Co. paid the balance due to DeVito Company on May 4 instead of April 15. Prepare the journal entry to record this payment.