6. (1) A 90 days commercial paper with face value $5,000,000 was sold at annual interest rate of 3% on Wednesday, September 1st. If you purchase it on September 1st, how much was the purchase price? (2) If you hold the commercial paper until maturity (December 1st, 2021), how much will you receive from the company on maturity date? How much is your annual effective interest rate? (3) If annual interest rate drops to 2.50% 30 days later (on October 1st, 2021), how much can you sell the commercial paper on that day? How much is the annual effective interest rate you earned from holding the commercial paper for 30 days? Will you be better off to sell the commercial paper on that day or hold it until maturity? Why?