I need help with the following finance question:

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An investor pays $10,000. In return, he gets end-of-quarter payments for three years of $800 and an additional payment of $600 at the end of 61 months. Find the annual yield correct to the nearest one-hundredth of a percent. 2 19 a time line isi -10 ,8.8 18 + + + o 1 21 12 20.3333 value is -20.333 = 10 .8 a to + Guess and check" allous an equation of + -6 (1+j) (jis the quarterly rate) you to approximate j ( it is between 2001 and ( Then find annale yield (more than . 200 35) 2005 and less than oz)