Ivanhoe Inc.'s general ledger at April 30, 2018, included the following: Cash $4,900; Supplies $600; Equipment $24,300; Accounts Payable $2,000; Unearned Revenue (from gift certificates) $1,100; Bank Loan Payable $9,800; Common Shares $5,400; and Retained Earnings $11,500. The following transactions occurred during May: May 1 Paid rent for the month of May, $900. 4 Paid $1,200 of the account payable outstanding at April 30. 7 Issued gift certificates for future services for $1,400 cash. 15 Received $2,000 from customers for services performed to date. 15 Paid $1,300 in salaries to employees. 17 Customers receiving services worth $800 used gift certificates in payment. 18 Paid the remaining accounts payable from April 30. 22 Purchased supplies of $800 on account. 24 Received a bill for advertising for $600. This bill is due on June 22. 25 Received and paid a utilities bill for $300. 28 Received $2,000 from customers for services performed. 29 Customers receiving services worth $500 used gift certificates in payment. 30 Interest of $50 was paid on the bank loan. 31 Paid $1,400 in salaries to employees. 31 Paid income tax instalment for the month, $150. Journalize the May transactions. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter o for the amounts. Record journal entries in the order presented in the problem.) Date Account Titles and Explanation Debit Credit (To record cash received from customers) (To record payment of salaries)