The following information was extracted from the accounting records of Kaplan's Medical Clinic.

• Net income: $10,000
• Depreciation expense: $1,500
• Increase in accounts receivable: $3,000
• Decrease in inventory: $1,500
• Increase in accounts payable: $2,500
• Increase in property, plant, and equipment: $15,000
• Decrease in short-term notes payable: $10,000
• Increase in long-term bonds payable: $15,000

What is the net cash flow from investing activities?