Pedro sells investment land on September 1, 2018. Information pertaining to the sale follows: Adjusted basis $28,000 Selling price 100,800 Selling expenses 1,350 Down payment 11,500 Four installment payments 16,800 Mortgage assumed by the buyer 22,100 Each installment payment is due on September 1 of 2019, 2020, 2021, and 2022 (ignore interest). Determine the tax consequences in 2018, 2019, 2020, 2021, and 2022.