Journalize the following transactions assuming the perpetual inventory system:

July 3 Sold merchandise on account for $3,750 including terms. The cost of the merchandise sold was $2,000.

July 5 Issued credit memo for $1,050 for merchandise returned from sale on July 3. The cost of the merchandise returned was $610.

July12 Received check for the amount due for sale on July 3 less return on July 5.

July 17 Sold merchandise for $7,000 plus 6% sales tax to cash customers. The cost of the merchandise sold was $3,830.