If \( 5^{2} \cdot 5^{4} \cdot 5^{6} \cdots 5^{2 n}=(0.04)^{-28} \), then \( n \) is equal to....
If \( 5^{2} \cdot 5^{4} \cdot 5^{6} \cdots 5^{2 n}=(0.04)^{-28} \), then \( n \) is equal to
\( \mathrm{P} \)
(1) 7
W
(2) 5
(3) 6
(4) 3
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