c) Your uncle has $250,000 invested at 7% and now he wants to retire. He wants to withdraw $35,000 at the end of each year, beginning at the end of this year. He also want to have $25,000 left to give you when he ceases to withdraw funds from the account. For how many years can he make the $35,000 withdraws and still have $25,000 left in the end?