Find I and N In this part, you need to find the interest rate and length of time. Consider the following question: A security has a cost of $2,000 and will return $3,000 after 8 years. What rate of return does the security provide?

D) Calculate the rate of return (I) using the Excel function

The population of Texas is 28 million people. Suppose the population is expected to grow by 2% per year. How long would it take for the population to double?

E) Calculate the number of periods using the Excel function