Common stock value$-$Constant growth

Previous question dividend per share in $2023$is expected to be $$4\mathrm{.}78.$

a$.$ If you can earn $110$ similar$-$risk investments, what is the mast you would be willing to pay per share in $2022$just after the $$4\mathrm{.}64$ dividend?

b$.$ If you can earn only $86\%$ similar$-$risk investments, what is the most you would be willing to pay per share?

c$.$ Compare your findings in parts a and $b,$ what is the impact of changing risk on share value?

a$.$ If you can earn $11\%$ on similar$-$risk investments, the most you would be willing to pay per share is $$59\mathrm{.}85.($Round to the nearest cent.$)$

b$.$ If you can earn $8\%$ on similar$-$risk investments, the most you would be willing to pay per share is $ $($Round to the nearest cent.$)$