Your parents tell you that if you apply yourself and earn a minimum grade of B - in Finance 3101, they will reward you by depositing in your account $1,050 next year, $1,500 the following year and $2,500 the year after that. If you can earn an annual rate of 4%, how much would you have in your account immediately after your parents' final deposit?

Your parents have promised you possible deposits of $!,050, $1,500 and $2,500 at the end of the next three years, respectively. If your parents can earn 6% per year, what size of a one-time deposit would they have to make today in order to keep their promise?