The function f is defined by subtracting 25 from the

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The function f is defined by subtracting 25 from the square of a number and the function g is defined as the square root of one-half of a number. If g(f(x))=10, then which of the following is a possible value of x?

A. -15
B. -5
C. 0
D. 5
E. 25

[spoiler]OA=A[/spoiler]

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