Solve the following:

What is the rate of return (annual compound interest rate) for following investment? 30,000 dollars of investment in present time that yields 9000, 8000, 7000, 6000, and 5000 dollars in the end of rst, second, third, fourth, fth and sixth year with no salvage value. Please explain your work in detail. C=30,000 |=9,000 l=8,000 |=7,000 |=6,000 l=5,000 m C: Cost, I: Income