What is the purpose of Additional Funds Needed(AFN) equation?Explain the purpose

What is the purpose of Additional Funds Needed(AFN) equation?Explain the purpose of Operating and FinancialLeverage.Provide a brief explanation on the purpose of CapitalBudgeting and why this concept is important to the financial healthof a corporationProvide a brief explanation on the purpose of CapitalStructure and Cost of Capital and how these concepts relate to thefinancial health of a corporation.