Using a financial calculator, how should we calculate the following questions. 1. What is the present value of $10,000 to be received each year for 20 years if the payments start immediately. Assume a discount rate of 5%. 2.Robert wants to withdraw $100,000 a year for 30 years after he retires. He will probably work for 30 years and earn 5% interest during the whole time. How much does Robert have to contribute to her pension fund each year so she can retire on $100,000 a year