If using excel please provide code.

20 Chips USA is considering the following projects to 15-20 improve their production process. Chips have a short life, so a 3-year horizon is used in evaluation. Which projects should be done if the budget is $70,000? What is the opportunity cost of capital? 15- Project First Cost $20,000 30,000 10,000 5,000 25,000 15,000 40,000 Benefit $11,000 14,000 6,000 2,400 13,000 7,000 21,000 4