Snowcap Mining Co. acquired mineral rights for $342,720,000. The mineral deposit is estimated at 306,000,000 tons. During the current year, 55,600,000 tons were mined and sold. Required: a. Determine the depletion rate. Round your answer to two decimal places. b. Determine the amount of depletion expense for the current year. c. Journalize the adjusting entry on December 31 to recognize the depletion expense. Refer to the chart of accounts for the exact wording of the account titles. CNOW journals do not use lines for journal explanations. Every line on a journal page is used for debit or credit entries. CNOW journals will automatically indent a credit entry when a credit amount is entered.