Respuesta :
I hope this helps you
f (1+1)=f (1)-2
f (2)= 18-2=16
f (2+1)=f (2)-2
f (3)=16-2=14
f (3+1)=f (3)-2
f (4)=14-2=12
f (4+1)= f (4)-2
f (5)=12-2=10
f (1+1)=f (1)-2
f (2)= 18-2=16
f (2+1)=f (2)-2
f (3)=16-2=14
f (3+1)=f (3)-2
f (4)=14-2=12
f (4+1)= f (4)-2
f (5)=12-2=10
Answer: it’s 10
Step-by-step explanation:
Hope this helped!