Common stock value: Constant growth McCracken Roofing Inc. common stock paid a dividend of $1.20 per share last year. The company expects earnings and divi-dends to grow at a rate of 5% per year for...

Common stock value: Constant growth McCracken Roofing Inc. common stock paid a dividend of $1.20 per share last year. The company expects earnings and divi-dends to grow at a rate of 5% per year for the foreseeable future. a. What required rate of return for this stock would result in a price per share of $28?
b. If McCracken expects both earnings and dividends to grow at an annual rate of 10%, what required rate of return would result in a price per share of $28