2. Marry wants to help pay for her grandchild's education. How many years will it take her to reach her goal of 30,000 if she invests 1,000 per year, earning 6 percent?

3. My husband and I estimate that we will need $50,000 in 18 years for the education of our new born daughter. assuming we can obtain a return of 4 percent, how much should we invest annually?