CFAI L2 Mock question 34 from pm

CFA Level II
#1

question 34 from pm asks to calculate the implied long term growth rate.

Does any one know why we dont use the formula r=div yield + growth rate to calculate the growth rate, the exhibits give the div yield and required return and yet the answer illustrates the use of div yield= r-g/1+g… Im confused!!

and what is everyone scoring btw on the mock???

#2

I don’t know the whole question but (r-g/1+g) is the justified dividend yield based on fundamentals. If you do some algebra from the GGM you will see this is accurate.