The general ledger of Williams Greek Gyros contained the following Accounts Payable control account (in T-account form). Also shown is the related subsidiary ledger. LO4 GENERAL LEDGER Accounts Payable Feb. 15 General journal 1,400 Feb. 1 Balance 26,025 28 ? ? 5 General journal 265 11 General journal 550 28 Purchases 13,900 Feb. 28 Balance 9,840 ACCOUNTS PAYABLE LEDGER Sealy Bakery Wolcott Condiments, Inc.
Feb. 28 Bal. 4,600 Feb. 28 Bal. ?
Gates Meats Feb. 28 Bal. 2,000 Instructions

(a) Indicate the missing posting reference and amount in the control account, and the missing ending balance in the subsidiary ledger.

(b) Indicate the amounts in the control account that were dual-posted (i.e., posted to the control account and the subsidiary accounts).