Question

Given f(x)=6x+6 and g(x)=5x+9 then what is f(g(2))

Answer 1

f(g(2))
g(2)=5(2)+9
g=10+9
g=19
now
f(g(2))=f(19)
f(19)=6(19)+6
f(19)=114+6
f(g(2))=120

Answer 2

f(x) = 6x + 6
g(x) = 5x + 9

f[g(2)] = 6[5(2) + 9] + 6
f[g(2)] = 6(10 + 9) + 6
f[g(2)] = 6(19) + 6
f[g(2)] = 114 + 6
f[g(2)] = 120