Calculate the revenue for the year ending december 31, 2016, based on the information given below. ​ ​ 2016 2017 retained earnings, january 1 $14,500 $ x revenue for the year y 48,500 expenses for the year 44,800 42,700 dividends paid 3,500 5,700 ​ the ending balance of retained earnings on december 31, 2017, is $18,500.​ ​$15,400 ​$52,200 ​$33,800 ​$18,400