Answer
a. False
b. True
c. False
Work Step by Step
a.
$5^{-1}=0.2$
$5^{-2}=0.04$.
So the statement is false.
b.
$(\frac{1}{5})^{-1}=5$
$(\frac{1}{5})^{-2}=25$.
So the statement is true.
c.
Using part a and b, this is not always true.
It is only true when a is less than 1, but false when a is greater than 1.
Therefore, this statement is false overall.
