Mary has a bakery store. The store brings her a revenue of $16,000. She pays a rent for her store of $2,000. Her labor costs for are $4,500, and she spends $6,000 on nut flours, sugar, and other supplies. If Mary does not works for her own store, she can earn $2,500 working as a bank teller. Flag question: Question 18 Question 181 pts Calculate the economic cost. Answer: The economic cost =