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Bill paid $10,000 (at CF0) for an investment that promises to pay $750 at the end of each of the next 5 years, then an additional lump sum payment of $16,550 at the end of the 5 th year. What is the expected rate of retum on this investment? Your answer should be between 8.12 and 21.96, rounded to 2 decimal places, with no special characters