Need help understanding on financial calculator with the equations

Shoreline Foods pays a constant annual dividend of $1.60 a share and currently sells for $28.50 a share. What is the rate of return? Multiple Choice 0 4.56 percent 6.91 percent 5.39 percent 6.63 percent 0000 5.61 percent The Bell Weather Co. is a new firm in a rapidly growing industry. The company is planning on increasing its annual dividend by 20 percent a year for the next 4 years and then decreasing the growth rate to 3 percent per year. The companyjust paid its annual dividend in the amount of $3.40 per share. What is the current value of one share of this stock if the required rate of return is 8.90 percent? Multiple Choice 0 $108.35 0 $123.08 $87.51 $104.95 O O $126.48 0