It doesnt make sense. Is there suppose to be an image?
5000(1+.085/4)^n=1000
to find n use log:
1.02125^n
N X log1.02125
when computed=32.9
round to 33 quarters compounded
33/4
equals to 8 years 3 months
MP
PM
Assuming your n is on a side
The first option and the third one