A corporation uses a perpetual inventory system. It purchased $2,000 of merchandise on July 5 on account with terms 2/10,n/30. It returned $400 of the merchandise on July 9. It pays on July 21. Which of the following is part of the journal entry it records when it pays on July 21 ? Credit to Accounts Payable for $1,600 Debit to Cash for $1,600 Debit to Accounts Payable for $2,000 Credit to Cash for $1,600 Debit to inventory for $2,000