Please provide number formula in detail not excel calculating

XYZ, Inc. just paid $2.00 dividend. Dividends are expected to grow at a 20% rate for the next five years. After that, the company has stated that the annual dividend will be $2.50 per share indefinitely. The required rate of return is 10%. (a) (4 points) What is this stock worth to you per share today? (b) (3 points) What is the expected stock price next year? c) (3 points) What is the expected stock price 20 years from today