Exercise 6-9 Record transactions using a perpetual system (LO6-5) [The following information applies to the questions displayed below.] Littleton Books has the following transactions during May. May 2 Purchases books on account from Readers Wholesale for $3,300, terms 1/10, n/30 May 3 Pays cash for freight costs of $200 on books purchased from Readers May 5 Returns books with a cost of $400 to Readers because part of the order is incorrect. May 10 Pays the full amount due to Readers. May 30 Sells all books purchased on May 2 (less those returned on May 5) for $4,000 on account