please explain these four questionsThanks

3. In the CFFA formula, why do we need to subtract Capital Spending and the change in Net Working Capital from Operating Cash Flow before we can find out the amount of cash that flows to the investors? 10. What potential problems might arise if a company grows too fast? Growing too fast may become a problem for small new companies: Losing flexibility I 6. What do the positive and negative signs in CFFA calculation mean? 7. If a company decides to increase its business scale, which accounts in the Balance Sheets and Income Statements are likely to increase