I'm not sure if I am doing this correctly please help. Please show the formulas and any calculations that you do I'm really confused. Thank you so much I really appreciate it!

A. Suppose the CPI was 170 in 2020 and it is 191 in 2021. Calculate 2021 inflation rate. (2 points) B. If John's nominal income increased by 2.3 % last year and price level rose by 3.0%, by what percentage John's real income changed? (2 years) C. Jose and Jessica meet George, the banker, to work out the details of a mortgage. They all expect that inflation will be 2 percent over the term of the loan, and they agree on a nominal interest rate of 6 percent. As it turns out, the inflation rate is 5 percent over the term of the loan. What was the actual real interest rate (2 points) and explain who benefited and who lost as a result of Unexpected inflation rate. (2 points) (Show all the formulas and your calculations) Edit View Insert Format Tools Table