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A company had the following cash flows in 2013: - Cash paid to employees - $60,000 - Cash received from issuance of preferred stock - $300,000 - Cash paid for operating expenses - $40,000 - Cash paid for income taxes - $20,000 - Cash received from customers - $500,000 - Principle paid on note payable - $35,000 - Interest paid on note payable - $5,000 - Cash paid for merchandise inventory - $200,000 - Cash paid for dividends - $10,000 - Cash paid for the purchase of equipment - $100,000 - Cash received from the sale of a patent - $12,000 What are cash flows from operating activities