Question

If 102y = 25, then 10-y equals:

(a) -1/5, (b) 1/625, (c) 1/50, (d) 1/25, (e) 1/5
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Answer 1

Hey mate..

here's the answer

102y = 25

(10y)2 = 52

10y = 5

1/10y = 1/5

10-y = 1/5

Hope this helps❤

Answer 2

REFER THE ATTACHMENT...........