Please help me solve this.

Define the term "opportunity cost." In what types of decisions is an opportunity cost relevant? How about "sunk costs"? What are they and when are they relevant? Identify the opportunity costs and sunk costs in the following situation Frieda has invented a new type of flyswatter. After giving the matter much thought, Frieda has decided to quit her $4000 per month job with a consulting firm and produce and sell the flyswatters full time. Frieda will rent a garage that will be used as a production plant. The rent will be $150 per month. Frieda will rent production equipment at a cost of $500 per month. The cost of materials for each flyswatter will be $0.30. Frieda will hire workers to produce the flyswatters, paying them $0.50 for each completed unit. Frieda will rent a room in the house next door for use as her sales office. The rent will be $75 per month. She has arranged for the telephone company to attach a recording device to her home phone to get off-hours messages from customers. The device will increase her monthly phone bill by $20. Frieda has some money in savings that is earning interest of $1000 per year. These savings will be withdrawn and used for about a year to get the business going. To sell her flyswatters, Frieda will advertise heavily in the local area. Advertising costs will be $400 per month. In addition, Frieda will pay a sales commission of $0.10 for each flyswatter sold. Frieda has already paid the legal and filing fees to incorporate her business, $600