Roxi, Incoeporated, is considering the purchase of a factory machine that would cost $349,472, would have a useful ife of 7 years, and would have no salvage value. The machine woukd allow the company to earn additional net cash inflows of $81,500 per year. The intemal rate of retum on the imvestment in the machine is dosest to. a. 16% b. 13% c. 11%. t9. 1476