Me: What is 9 plus 8?
Sans: . . .
Me: I'm not referring to that.
Sans: phew, okay..
Skipper: 72!!
Me: No, that's 9 times 8..
Rosy: *smirks* 98.
Sans: that's combining the numbers, kid.

Jagfl: Wait.. 9 plus 8... Omg why was it not a reference???
Me: I would make Sans very depressed.
Sans: wait you know?
Me: *sweat* Bye now. *walks away*

Just in case you don't know, it's 17.
17 confirmed.