Riley Corporation, a private company following ASPE, uses a periodic inventory system and the gross method of accounting for purchase discounts. ON July 1, Riley purchased $60,000 of inventory, terms 2/10, n/30, f.o.b. shipping point. Riley paid freight costs of $1,200. On July 3, Riley returned damage goods and receive a credit of $6000. On July 10, Riley paid for the goods. Prepare all necessary journal entries for Roley