4. Consider an Energy company Z that will distribute dividends of $15M annually forever (dividends are paid at t = 1,2,3,4,5,...). a. Using a dividend discount approach with a cost of capital of 15%, what is the value of the equity of the company Z today (r=0)? b. There is an Energy company X that has the same equity value today (1-0) and risk as company Z but it is not currently distributing dividends. Company X plans to start paying annual dividends at time 1 5 forever and the dividend will grow at 5% every year forever. What is the dividend amount that company X will distribute att 5