Show the formula How long would it take for $1000 invested at a 7% annual rate of return to reach $2000? What was your annual rate of return if a $2,000 investment ten years ago is now $3000? How much can you receive annually on a $1,000,000 at 6% interest without dipping into the principal? What is the monthly payment on $30,000, 5-year loan with an APR of 7%? How much would you have at the end of 30 years if you save $100 a month and earn an annual return of 8%