Dear experts, please answer the below calculations with step by step and provide the formula to every answer. Thank you!

a) The Jibby Co. just paid a dividend of RM2.15 per share on its stock. The dividends are expected to grow at a constant rate of 5 percent per year, indefinitely. If investors require an 11 percent return on the stock, calculate. i. The current price? ii. The price be in three years? iii. The price be in 15 years? b) Suppose you know that a company's stock currently sells for RM82 per share, and the required return on the stock is 12.5 per cent. You also understand that the total return on the stock is evenly divided between a capital gains yield and a dividend yield. If the company's policy is always to maintain a constant growth rate in its dividends, what is the current dividend per share