1 Copper Explorations recently acquired the rights to mine a new site. Equipment and a truck were purchased to begin the mining operations at the site. Details of the assets for mining are as follows: Assets Date of Purchase Mineral rights 1st April 2020 Cost (S) 62,400 Residual Value (S) Estimated useful life 0 4 years Equipment 1st May 2020 244,800 0 4 years Truck 1st Sept 2020 95,400 0 4 years Copper's year-end is December 31 and it uses the straight-line method for all mining including intangibles. Required: a) Calculate the monthly charges of the depreciation of mineral rights, equipment and truck. b) Prepare the three depreciation accounts of mineral rights, equipment and truck as at December 31, 2020. c) Assume the mine was closed on October 31, 2023, and all the assets were scrapped with zero residual value. Record the disposal accounts of all the 3 pieces of assets