Giant Enterprises' stock has a required return of 14.614.6%. The company, which plans to pay a dividend of $2.612.61 per share in the coming year, anticipates that its future dividends will increase at an annual rate consistent with that experienced over 20132013-20192019 period, when the following dividends were paid: LOADING a. If the risk-free rate is 55%, what is the risk premium on Giant's stock? b. Using the constant-growth model, estimate the value of Giant's stock. (Hint: Round the computed dividend growth rate to the nearest whole percent.) c. Explain what effect, if any, a decrease in the risk premium would have on the value of Giant's stock.