Current Attempt in Progress Ivanhoe Company started operations on January 1, 2015, and has used the FIFO method of inventory valuation since its inception. In 2021. it decides to switch to the average-cost method. You are provided with the following information Net Income Under FIFO Under Average Cost $99.900 $90.900 Retained Earnings (Ending Balance) Under FIFO $107.100 2015 2016 72.700 68.100 150,300 2017 231,700 95,400 85,600 2018 315,400 127,000 137.800 293,200 541,600 2019 302.700 313,300 853,800 2020 307.900 (a) What is the beginning retained earnings balance at January 1, 2017. if Ivanhoe prepares comparative financial statements starting in 2017? Retained earnings, January 1 $ (b) What is the beginning retained earnings balance at January 1, 2020, ivanhoe prepares comparative financial statements starting in 2020? Retained earnings, January 1 $ (c) What is the beginning retained earnings balance at January 1, 2021, if Ivanhoe prepares single-period financial statements for 2021? $ Retained earnings. January 1 (c) What is the beginning retained earnings balance at January 1, 2021, if Ivanhoe prepares single-period financial statements for 20217 Retained earnings, January 1 $ (d) What is the net income reported by Ivanhoe in the 2020 income statement if it prepares comparative financial statements starting with 2018? 2018 2019 2020 Net Income $ $