1. (Solving for n with nonannual periods) About how many years would it take for your investment to grow threefold if it were invested at an APR of 15 percent compounded weekly? If you invest $1 at an APR of 15 percent compounded weekly, about how many years would it take for your investment to grow threefold to $3?

2. (Present value of a complex stream) Don Draper has signed a contract that will pay him $60,000 at the beginning of each year for the next 8 years, plus an additional $110,000 at the end of year 8. If 9 percent is the appropriate discount rate, what is the present value of this contract? a. What is the present value of $60,000 at the beginning of each year for the next 8 years if the discount rate is 9 percent?