I need help with a homework problem for Finance.

15. The risk free rate of return is 8%, the expected return on the market portfolio is 15% and the stock of ABC Company has a beta of 1.2. ABC has a dividend payout ratio of 40% and last years earnings just announced were $10 per share. ABC just paid a dividend and the next will come in one year. Finally, ABC is expected to always earn an ROE of 20% per year on its reinvested earnings.

a. What is the intrinsic value of a share of ABC stock?

b. If todays market price is $100 per share and you expect the price to be equal to the intrinsic value one year from today, what would your one year holding period return be on ABC stock?