Suppose that a worker in country a can produce either 25 bananas or 5 tomatoes cach year. country a has 200 workers. suppose a worker in country b can produce either 18 bananas or 6 tomatocs each year. country b has 400 workers. the opportunity cost of one tomato in country b is: multiple choice 18 bananas. 3 bananas. 108 bananas. 6 bananas

Consider the following two projects. both have costs of $5,000 in year 1. project 1 provides benefits of $2,000 in each of the first four years only. the second provides benefits of $2,000 for each of years 6 to 10 only. compute the net benefits using a discount rate of 6 percent. repeat using a discount rate of 12 percent. what can you conclude from this exercise?