Mayn Co., a womens clothing store, purchased $36,000 of merchandise from a supplier on account, terms FOB

Question:

Mayn Co., a women’s clothing store, purchased $36,000 of merchandise from a supplier on account, terms FOB destination, 2/10, n/30. Mayn Co. returned $4,000 of the merchandise, receiving a credit memo, and then paid the amount due within the discount period. Journalize Mayn Co.’s entries to record
(a) The purchase,
(b) The merchandise return, and
(c) The payment.