The future value of $$550$ six years from now at $6$ percent.

The future value of $$900$ saved each year for $10$ years at $5$ percent.

The amount a person would have to deposit today $($present value$)$ at an interest rate of $6$ percent to have $$1,000$ five years from now.

The amount a person would have to deposit today to be able to take out $$600$ a year for $7$ years from an account earning $8$ percent.