Respuesta :

It's B, 15 and 9 because it's 12+3 and 12-3.
_Brainliest if helped!!

Ans: B 15& 9

Number line
|    | ⇄| ⇄| ⇄*|* ⇄| ⇄|  ⇄|      |
8  9  10  11  12  13  14  15  16