Question 5, 10 Points Early in the current year, Tokay Co. purchased the Silverton Mine at a cost of $20,000,000. The mine was estimated to contain 200,000 tons of ore and to have a residual value of $5,000,000 after mining operations are completed. During the year, 105,000 tons of ore were removed from the mine. In this situation: a) The amount of depletion charged to expenses from during 2020 is? b) The Net Book Value of the mine at the end of 2020 is? c) The inventory value of the extracted carats of ore