Earth's Treasures Mining Co. acquired mineral rights for $56,250,000. The mineral deposit is estimated at 75,000,000 tons. During the current year, 21, 750,000 tons were mined and sold. a. Determine the depietion rate. If required, round your answer to two decimal places. perton b. Determine the amount of depletion expense for the current year: c. Journalize the adjusting entry on December 31 to recognize the depletion expense. If an amount box does not require an entry, leave it biank: Dec 31