Answer :

Explanation:
Start at the bit you can do...h(2)
h(x)=
x
2
+
1

h(2)=
2
2
+
1
=5
Next g(x)=3x
Now we are looking at g(h(2)) but we know h(2) =5
g(5) =3*5=15
So g(h(2))=15
Next f(x) =2x-1
So similarly we are looking for f(15) =2*15=29

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