i have question about these two problem

ABC Company has been growing at a 10% rate, and it just paid a dividend of $3.00. ABC expects to achieve a dramatic increase in its short-run growth rate, to 20% annually for the next 2 years. After this time, growth is expected to return to the long-run constant rate of 10%. The company's beta is 2.0, the market risk premium is 4%, and the risk-free rate is 7%. What is the expected dividend yield today? Holmgren Hotels' stock has a required return of 11%. The stock currently does not pay a dividend but it expects to begin paying a dividend of $1.00 per share starting five years from today. Once established, the dividend is expected to grow by 25% per year for two years, after which time it is expected to grow at rate of 10% per year. What should be Holmgren's stock price today