The Valentine Company has decided to buy a machine costing $27,795. Estimated cash savings from using the new machine amount to $7,500 per year. The machine will have no salvage value at the end of its useful life of seven years. (Ignore income taxes.) If Valentine's required rate of return is 9%, the machine's internal rate of return is closest to: (Round discount factor(s) to 3 decimal places and final answer to the closest interest rate.) Multiple Choice 13% 19% 15% O 17%