Final answer:
The total assets for Pack Company to report on the Balance Sheet is $19,000.
Step-by-step explanation:
The total assets can be calculated by summing the Cash, Accounts Receivable, and Office Supplies. In this case, the total assets would be $12,000 (Cash) + $3,000 (Accounts Receivable) + $4,000 (Office Supplies) = $19,000.