please give as detailed as an explanation as possible, including formulas used

Stock price. Staton-Smith Software is a new start-up company and will not pay dividends for the first five years of operation. It will then institute an annual cash dividend policy of $2.50 with a constant growth rate of 5%, with the first dividend at the end of year six. The company will be in business for twenty-five years total. What is the stock's price if an investor wants a. a 10% return? b. a 15% return? c. a 20% return? d. a 40% return? a