Answer:

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Step-by-step explanation:
The notation (g∘f)(x) is the same as g(f(x))
We'll start with the outer function g(x). Then replace each x with f(x). Afterward plug in f(x) = -3x+5 for the right hand side only.
This is what the steps look like

Therefore,

You can use tools like WolframAlpha, GeoGebra, and Desmos as ways to confirm the answer.