1. If you put $500 into a regular savings account in the bank when you are 18 years old, and add $50 each month, how much will you have when you are 68 years old (50 years later)?

     ~$822.32. I'm surprised because it looks like you'll be saving quite a good amount of money so I expected to have more money but I guess not.

2. If you put $500 into a regular savings account in the bank when you are 30 years old, and add $50 each month, how much will you have when you are 68 years old (38 years later)?

~$59,016.94.  That's a lot of money!!!

3. If you put $500 into a regular savings account in the bank when you are 40 years old, and add $50 each month, how much will you have when you are 68 years old (28 years later)?

~$30,076.26