Respuesta :
Step-by-step explanation:
steps are in picture above.
Note : if you have any confusion let me know.

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Answer:
-3
Step-by-step explanation:
[tex](f\circ g)(1) = f(g(1)) = f(2\cdot1-1) = f(1)=-3\cdot1\\\\\boxed{(f\circ g)(1)=-3}[/tex]