1. How many years will it take $400 to grow to $1671 if it is invested at 10 percent compounded annually?

2. At what rate would $1000 have to be invested to grow to $4046 in 10 years ?

3. What is the present value of an ordinary annuity of $1000 per year for 7 years discounted back to the present at 10 percent? What would be the present value if it were an annuity due?

4. You have just borrowed $100,000 and you agree to pay it back over the next 25 years in 25 equal end of the year payments plus 10 percent compound interest on the unpaid balance ? What will be the size of these payments?

5. What is the present value of a $1000 perpetuity discounted back to the present at 8 percent?

6. What is the present value of a $1000 annuity for 10 years, with the first payment occuring at the end of year 10( that is, ten $1000 payments occuring at the end of year 10 through year 19)given a discount rate of 10 percent?

7. Given a 10 percent discount rate, what is the present value of a perpetuity of $1000 per year if the first payment does not begin until the end of year 10?