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\(h \circ g \circ f\)

Algebra Level 1

\(f(x)=3x+6\) and \(g(x)\) satisfies the following for all functions \(h(x)\):

\[(h \circ g \circ f)(x)=h(x).\]

What is the value of \(g(18)?\)

3 4 5 6

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by Mahindra Jain

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