Respuesta :
Are you allowed to use any form of software, and let it's calculations be your reasons? Because I did it with software and got -17.

[tex]\bf f(x)=4x+3\qquad \qquad g(x)=-2x+5
\\\\\\
(f\circ g)(x)\implies f[\ g(x)\ ]
\\\\\\
(f\circ g)(5)\implies f[\ g(5)\ ]
\\\\\\
g(5)=-2(5)+5\implies g(5)=-5
\\\\\\
f(-5)=4(-5)+3\implies f(-5)=-17\impliedby (f\circ g)(5)[/tex]