Can someone please help me with this?

Answer:
[tex]g=2[/tex] inches
Step-by-step explanation:
If the shapes are similar, solve for g
[tex]\frac{12}{6}=\frac{g}{1}[/tex]
Simplify [tex]\frac{12}{6}[/tex]
[tex]\frac{12}{6}=\frac{2}{1}=2[/tex]
Insert:
[tex]2=\frac{g}{1}[/tex]
Isolate g by multiplying both sides by 1:
[tex]1*(2)=1*(\frac{g}{1})[/tex]
[tex]2=g\\g=2[/tex]
Finito.