c. A security has a cost of $1,000 and will return $2,000 after 9 years. What rate of return does the security provide? Inputs: PV FV Function (RATE): d. Suppose Canada's population is 30 million people, and its population is expected to grow by 2.5% per year. How long would it take for the population to double? Inputs: PV 60,000,000.00 Igrowth rate Function (NPER): - Years to double