A bridge troll offered you a deal. If you pay him $$8,000$ today, he will let you cross the bridge. In $10$ years, you will come back to the bridge and he will probably give you $$35,000.$However, he does seem a little untrustworthy so there is a $20\%$ chance he will not give you the reward $($meaning there is a $20\%$ chance you will receive $$0).$ If you have a required return is $15\%,$ should you accept his offer? Show your work using the IRR method and state your decision