31. Yogi and Zack each open IRAs in 2016 and plan to invest $9,000 per year for the next 30 years. Yogi makes his first deposit on January 1, 2016 and will make all future deposits on the first day of the year. Zack makes his first deposit on December 31, 2016 and will continue to make his annual deposits on the last day of each year. At the end of 30 years, what is the difference in the value of the IRAs (rounded to the nearest dollar), assuming an interest rate of 8% per year. 1. $46,670 2. $66,669 3. $80,000 (81) 4. $90,564 5. $55,893 a