Posted by **Jon** on Tuesday, May 20, 2008 at 1:31pm.

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

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