Answer:
This question has two requirements the answer of each requirement is given below.
Determine retain earning balance after the temporary accounts were closed at the end of 2016
Retain earning opening balance $ 2,500
Addition during the year $ 4,100
(Sales revenue 7,500- expenses 3,400)
Dividend paid ($ 1000)
Retain earning closing balance $ 5,600
Net income would Wyckoff Company report on its 2016 income statement
Net income = Revenue - expenses
Net income = $ 7,500 - $ 3,400
Net income = $ 4,100