a. Australia GDP increases from $2650 billion in 2021 to $2730 billion in 2022. Also suppose that using 2017 as the reference year, real GDP in 2021 was $2550 billion, and in 2022 it was $2680 billion. What would you say was Australia's economic growth from 2021 to 2022? b. Use the data in part (a) to calculate implicit price deflator values for 2021 and 2022, and then calculate a broad-based measure of inflation in Australia between 2021 and 2022.