Question: Evaluate a(b(n)) for a(b) = 3b and b(n) = 2n - 5 when n = 5. And Evaluate (f + g)(x) if f(x) = 3x

Evaluate a(b(n)) for a(b) = 3b and b(n) = 2n - 5 when n = 5.

And

Evaluate (f + g)(x) if f(x) = 3x2and g(x) = 2x - 4 when x = 3.

Thanks for the help!

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