tanenbaums book - PF questions I want 2+2 input on

[Heisenb3rg]

Okay I am curious as to 2+2s consensus here because I got these blatlently wrong.. and it puzzled me if I was wrong or the book was wrong.

You're on the button with KJs
Unknown UTG raises, unknown CO calls.. You?

You're on the button with T9s
LAG UTG raises, calling station CO calls...You?

explain your answers.

edit:
1/2 structure, 6 handed, the book says 1/2$ limit but doesnt mention how much rake there is.

Im also a tool and realized he was talking about KJo and not KJs.... The T9s question still applies tho.