please help with these four

What is the future value of $6939 on deposit for 3 years at 3% interest? QUESTION 2 What is the present value of the following payment stream, discounted at 2% annually: $651 at the end of year 1,$116 at the end of year 2 . and $360 at the end of year 3 ? QUESTION 3 You inherited a perpetuity that pays $1000 at the end of each year. Assuming an interest rate of 7%, what is the present value of your perpetuity? QUESTION 4 What is the present value of $100 to be deposited today into an account paying 6%, compounded semiannually for 4 years