xf(x)
18
25
33
42
56
64
77
81
xg(x)
12
25
37
41
58
63
74
86
xh(x)
16
2
37
4
5
6n
7
8


Using the tables above:    If h(x)=g(f(x))\displaystyle {h}{\left({x}\right)}={g{{\left({f{{\left({x}\right)}}}\right)}}} find n\displaystyle {n}