Investors require a 7% rate of return on Mather Company's stock (i.e., r,- 7%). a. What is its value if the previous dividend was Do = $2.50 and investors expect dividends to grow at a constant annual rate of (1) -2%, (2) 0%, (3) 3%, or (4) 5%? Do not round intermediate calculations. Round your answers to the nearest cent. (1) $ (2) $ (3) $ (4) S b. Using data from part a, what would the Gordon (constant growth) model value be if the required rate of return was 8% and the expected growth rate was (1) 8% or (2) 12%? Round your answers to the nearest cent. If the value is undefined, enter N/A. (1) S (2) $