please HELP!!! btw the one I chose isn't the right one

Answer:
[tex]10n[/tex]
Step-by-step explanation:
As [tex]n[/tex] increases by 1, [tex]f(n)[/tex] increases by 10.
[tex]f(1)=10(1)=10\\f(2)=10(2)=20\\f(3)=10(3)=30[/tex]
etc
[tex]n+10[/tex] would look like this:
[tex]g(1)=(1)+10=11\\g(2)=(2)+10=12\\g(3)=(3)+10=13[/tex]
etc