3 This graph represents the first hypothetical described in the video Imagine someone invests 10 000 with 7 returns compounding each year for 30 years 70000 60000 50000 40000 30000 20000 10000 0 10 15 20 25 years a Approximately how much does their investment grow in the first 15 years b Approximately how much does their investment grow between year 15 and 30 c This investor started with 10 000 and ended up with 74 500 after 30 years just from the growth of that initial investment Now imagine they tried to use savings to reach that same 30 year goal If they start with 10 000 how much would they need to save each year to have 74 500 after 30 years Assume they don t earn interest on savings