Given the following cash flows, what is the IRR?

Year $0$: $-$$$10,000$

Year $1$:$$2,000$

Year $2$: $$5,000$

Year $3$: $-$$$5,000$

Year $4$$$5,000$

Year $5$ : $$5,000$

Year $6$: $-$$$1,000$

Year $7$: $$5,000$

Year $8$: $$5,000$

Year $9$:$$5,000$

Year $10$: $$5,000$

$($Give your answer in percent format with $2$ decimal places.$)$

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#$4b$

If your company has an external reinvestment rate $($epsilon$)$ of $8\%,$ what is the ERR? $($Give your answer

in percent format with two decimals places.$)?$Given the following cash flows, what is the IRR?

Year $0$: $-$$$10,000$

Year $1$:$$2,000$

Year $2$: $$5,000$

Year $3$: $-$$$5,000$

Year $4$ $$5,000$

Year $5$: $$5,000$

Year $6$: $-$$$1,000$

Year $7$: $$5,000$

Year $8$: $$5,000$

Year $9$: $$5,000$

Year $10$: $$5,000$