Journalize each of the following transactions assuming a perpetual inventory system. April 5 Sold merchandise to a customer for $6,900; terms 2/10, n/30 (cost of sales $4, 180). 7 Made a cash sale of $5,200 of merchandise to a customer today (cost of sales $3,160). 8 Sold merchandise for $12,500; terms 2/10, n/30 (cost of sales $7,540). 15 Collected the amount owing from the credit customer of April 5. May 4 The customer of April 8 paid the balance owing