Respuesta :

bcalle
h(f(x))
h(9 - x)
9 - x - 2
- x + 7
f(x)=9-x
h(x)=x-2
 h of f(x) means h is function of function x put f(x) value in place of x in h(x)
h(f(x))=(9-x)-2
h(f(x))=7-x

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