3) Use the following graph to answer question. If you are currently producing at point "D", and you decide to increase production of tractors to point "E", what are you gaining and what is your opportunity cost for doing this? 20 A B -.. 16 C 12 Bread 8 D 4 .. ...... E 0 1 2 3 4 Tractors 4) If a company's total revenue is $785,633, their explicit costs are $432,555, and their implicit costs are $102,679, then what is their Accounting profit? What is their economic profit? (Show your work)