Learning Goal: I'm working on a accounting writing question and need an explanation and answer to help me learn.1st Q- What is cash flow statement, what are three main activities which are included in the cash flow statement? Explain all these activities, what items are included in them how cash flow statement can be used to understand the performance a business? 2nd Q- What is cost of goods sold, how to calculate cost of goods sold for manufacturing, merchandising and service business.Why the good sold is important to earn good profit?