Last year electric autos had sales of $165 million and assets at the start of the year of $280 million. if its return on start-of-year assets was 10%, what was its operating profit margin? (do not round intermediate calculations. enter your answer as a percent rounded to 2 decimal places)

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?