the first question the answers is B and the second question the eanswer is A but i need an explanation of how to get these numbers

14. David exchanges business land (Cost $32,000) for other business land (FMV $70,000) and marketable securities (FMV $20,000). What is David's recognized gain/loss on the exchange of the land? a. $57,000 b. $20,000 c. $90,000 d. $58,000 e. None of the above 10. Ted placed in service the following property in 2018: 7-year property costing $42,000 in July and 5-year property costing $60,000 in October. No other property was placed in service during the year. Sec. 179 was not elected and he elected out of bonus depreciation. 2018 cost recovery was: a. $ 7,500 b. $18,000 c. $ 9,000 d. $ 6,643 e. None of the above