Final answer:
The adjusting entry for Deana's supplies would involve debiting Supplies Expense for $1,000 and crediting Supplies for $1,000, reflecting the use of supplies between September and December.
Step-by-step explanation:
Deana needs to record the usage of supplies from the beginning balance of $1,800 to the ending balance of $800 on hand. The adjusting entry for the use of supplies would involve the Supplies Expense and Supplies accounts.
Looks like Deana used $1,000 worth of supplies from September to December ($1,800 - $800 = $1,000). The entry would be to debit Supplies Expense for $1,000, recognizing the expense, and credit Supplies for $1,000, to adjust the balance of the supplies asset down to what is actually on hand.