Final answer:
The question about the adjusted balance for the Office Supplies Expense account cannot be answered without knowing the initial amount spent on office supplies throughout the year, which is missing from the information provided.
Step-by-step explanation:
To calculate the adjusted balance for the Office Supplies Expense account after considering the adjustment for office supplies on hand at year-end ($650), we would start with the total amount spent on office supplies throughout the year and subtract the value of the supplies still on hand at the end of the year. Unfortunately, with the information provided in the question, there is a key piece missing: the total amount spent on office supplies throughout the year. Without this initial expense amount, we cannot determine the adjusted balance. Thus, we need additional information to answer the student's question correctly.