Return to que Copper Explorations recently acquired the rights to mine a new site. Equipment and a truck were purchased to begin mining operations at the site Details of the mining assets follow Asset Mineral rights Equipment T Truck Date of Purchase Mar. 1/20 Par. 1/20 Mar. 1/20 Cost 5 69,000 255,800 107,400 Est Residual SO e Est. Life 4 yrs 4 yrs 4 yrs Copper's year-end Is December 31 and it uses the straight-line method for all mining assets including intangibles Required: 1. Record amortization and depreciation at December 31, 2020, on the mining assets including the mineral rights