Please answer parts a,b & c. Please round to 2 decimals. thank you

Integrative Risk and valuation Giant Enterprises stock has a required return of 14.2%. The company, which plans to pay a dividend of $2.52 per share in the coming year, anticipates that its future dividends will increase at an annual rate consistent with that experienced over 2013-2019 period, when the following dividends were paid: a. If the risk-free rate is 6%, 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. a. If the risk-free rate is 6%, the risk premium on Giant's stock is%. (Round to one decimal place.) Year 2019 2018 2017 2016 2015 2014 2013 Dividend per Share $2.40 $2.29 $2.18 $2.07 $1.97 $1.88 $1.79