Answer:
b. increase expenses by $12,900.
Explanation:
When supplies are purchased, the entries required are debit to supplies account and a credit to cash. when the supplies are used up, debit supplies expense and credit supplies account.
Hence, the amount to be expensed is the difference between the purchases and the ending supplies balance if the opening balance in supplies account is nil.
Supplies used up
= $19,350 - $6,450
= $12,900
This will be posted as a debit to the supplies expense account.