Jon, you seem to have a pretty good handle on this stuff
I agree with your answers in your last 4 posts.
1)Solve: (1/5)^(t-2)=125
(1/5)^(t-2)=125
(1/5)^(t-2)=5^3
(1/5)^(t-2)=(1/5)^(-3)
equate the powers on both the sides. we obtain.....
t-2=-3
t=-3+2=-1
t=-1
2 answers
Thank you.