An accounting professor is considering opening his own consulting firm. To do so, she will have to quit her current job, that pays $125,000 a year, and take over a building that she owns and currently rents to her friend for $15,000 a year. Additionally, she will have to withdraw $50,000 from her savings, that pays 5 percent per year. Her expenses at the firm have been estimated as follows: $80,000 for employee salaries, $6,000 for insurance, $5,000 for utilities, and $9,000 for supplies. She anticipates annual revenues of $250,000.

1. The annual explicit costs
2. The annual implicit costs
3. The total annual opportunity costs
4. The annual accounting profits
5. The annual economic profits