Answer: 50
Step-by-step explanation:
[tex]h\:\circ \:g=h\left(g\left(x\right)\right)[/tex]
[tex]g\left(x\right)=4x-2[/tex]
[tex]=h\left(4x-2\right)[/tex]
[tex]=5\left(4x-2\right)[/tex]
[tex]=20x-10[/tex]
Substitute 3 for x:
= 20(3)-10
= 50
