On November 1, Cooper Equipment had a beginning balance in the Office Supplies account of $900. During the month, Cooper purchased $2,200 of office supplies. At November 30, Cooper Equipment had $600 of office supplies on hand. Read the requirements. Requirement 1. The Office Supplies T-account has been opened for you. Enter the beginning balance and purchase of office supplies. (Use "Nov. 1" as a posting reference to enter the beginning balance and "Nov. purchases" as a posting reference to post the purchase of office supplies during the month.) Requirements 1. The Office Supplies T-account has been opened for you. Enter the beginning balance and purchase of office supplies. 2. Record the adjusting entry required at November 30 . 3. Post the adjusting entry to the two accounts involved, and show their balances at November 30