6 (5 points) Bonneau Company acquired mineral rights for $80,000,000. The platinum deposit is estimated at 8,000,000 tons. During the current year, 2,000,000 tons were mined and sold. (a) Determine the depletion rate. (b) Determine the amount of depletion expense for the current year. (c) Journalize the adjusting entry to recognize the depletion expense