3. Assume you can earn 9% per year on your investments. a. If you invest $100,000 for retirement at age 30, how much will you have 35 years later for retirement? (Answer: $2,041,397) b. If you wait until age 40 to invest the $100,000, how much will you have 25 years later for retirement? (Answer: $862,308) c. Why is the difference so large?