Final answer:
Lambert's expected cash disbursement in October for purchases of goods would be $10,500.
Step-by-step explanation:
To calculate Lambert's expected cash disbursement in October for purchases of goods, we need to consider the credit card bill in September and the purchase of a new computer in mid-October. The credit card bill in September was $6,000.
However, Lambert expects to buy a new computer for $4,500 using the company credit card. Since the credit card bill is typically paid in full in the following month, the expected cash disbursement in October for purchases of goods would be $6,000 + $4,500 = $10,500.