If 102 y-25- then 10-y equalsa -15b 150c 1625d 15

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Locating a Point in Cartesian Plane

If 102 y=25, ...

Question

If 10^2y= 25, then 10^-y equals

(a) $- \frac{1}{5}$

(b) $\frac{1}{50}$

(c) $\frac{1}{625}$

(d) $\frac{1}{5}$

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