In 2020, Hart Co. invested $5,500,000 in oil well exploration activities. Sixty percent of the drilling was successful and resulted in commercial quantities of oil being found. Required: a. Indicate the amount of drilling expense Hart Co. would recognize in 2020 if the full-cost method is in use. Indicate the cost that would be reported on the balance sheet as oil and gas properties if the successful-efforts method is in use. $fill in the blank 2