7. The table below shows the values of the Consumer Price Index (CPI-U) for the past 5 years: 2018 251.1 2019 255.7 2020 258.8 2021 271.0 2022 292.7 a. If your salary in 2020 to 2021 was 45,375.00, what salary would you expect for the next year to compensate for the inflation of 2020-21? b. If you receive a 6% raise for that year, what is your effective raise for that year? c. If the inflation rate for 2022 to 2023 is estimated to be 6.4%, what is the estimated value of CPI-U for 2023?