math help with problem

Question

Given that f(x)=9x+4 and g(x)=−7, calculate

(a)	f(g(9))	=
(d)	g(f(3))	=

Answer 1

f(x) = 9x+4

g(x)=-7

f(g(x)) =9(-7)+4 =-63+4 =-59 for any x

g(f(x)) = -7 for any x

f(g(9))= f(-7) = -59

g(f(3)) = g(9(3)+4)= g(31) = -7