(7 points) On January 1, 2010, Adele invested $250000. The following table shows her average annual rate of retum over several periods, each ending on January 1, 2020: 1-year 2-year 5-year 10-year 2.8% 4% 8% 11% a) Find the balance of Adele's portfolio on January 1, 2020 Answer = $ b) Find the balance of Adele's portfolio on January 1, 2015 Answer = $ Click for a hint 250000(1.08) 5 = 367332.0192 is not the correct answer. C) Find Adele's average annual rate of return for the 5-year period from January 1, 2015 until January 1, 2018 Answer = d) Suppose that the annual rate of inflation in 2019 was 3.2%. Find the inflation-adjusted average rate of return of Adele's portfolio for the 1-year period from January 1, 2019 to January 1, 2020 Answer Click for a hint Real interest rate