Revenue Journal; Accounts Receivable subsidiary and General Ledgers Sage Learning Centers was established on July 20 to provide educational services. The services provided during the remainder of the month are as follows: July 21. Issued Invoice No. 1 to J. Dunlop for $160 on account. July 22. Issued Invoice No. 2 to K. Tisdale for 5685 on account. July 24. Issued Invoice No. 3 to T. Quinn for $150 on account. July 25. Provided educational services, $270, to K. Tisdale in exchange for educational supplies. July 27. Issued Invoice No, 4 to F. Mintz for $405 on account. July 30. Issued Invoice No, 5 to D. Chase for $360 on account. July 30. Issued Invoice No. 6 to K. Tisdale for $280 on account. July 31. Issued Invoice No. 7 to T. Quinn for $190 on account. Required: 1c. Post to the following customer accounts in the accounts receivable ledger, and insert the balance immediately after recording each entry: D. Chase; J. Dunlop; F. Mintz; T. Quinn; K. Tisdale. 2. Post the revenue journal and the general journal to the following accounts in the general ledger, inserting the account balances only after the last postings: 12 Accounts Receivable 13 Supplies 41 Fees Earned 3a. What is the sum of the balances of the customer accounts in the subsidiary ledger at July 31 ? : 3b. What is the balance of the accounts receivable controlling account at July 31 ? 5