I am in corporate finance. We have to find the IRR and NPV for a word problem and I am stuck on how to figure these out.

Please explain properly for better understanding What is Finance? How is Finance different from Accounting? What are important basic points that should be learned to pursue a career in finance?

(Corporate Finance) What do we mean when we refer to agency costs?

Explain why very small to medium-size enterprises (SMEs) might face problems in obtaining appropriate sources of finance. In your answer pay particular attention to problems and issues associated with: Uncertainty concerning the business; Assets available to offer as collateral or security; and Potential sources of finance for very new SMEs excluding sources from capital markets. I need a detailed response to this question.