Please discuss the following questions: 1. What are the differences between annuity and PV of FV? 2. You are given two numbers: Smith wants to receive $10,000 a year for next 5 years: Smith wants to have $60,000 in 5 years. Which keys you should use to represent 10,000 and 60,000, respectively? 3. You are given two numbers Lisa is to invest $5,000 a year in a mutual fund for next 5 years: Lisa invests $20.000 in IBM stock. Which keys you should use to represent 5.000 and 20,000, respectively