B. 5:10 because 15-5=10 which is the number of pencils with erasers and the 5 left are the amount of pencils which are missing an eraser
![[n][n+8]=0](https://tex.z-dn.net/?f=%5Bn%5D%5Bn%2B8%5D%3D0)
if either or both of
![[n]](https://tex.z-dn.net/?f=%5Bn%5D)
and
![[n+8]](https://tex.z-dn.net/?f=%5Bn%2B8%5D)
are 0, i.e. if one or both of
and
are even. But both will be even if
is even, and odd otherwise, so any even
will be a solution, e.g.
.
The answer is 3b
Step-by-step explanation: I searched up ways to learn abc math and it said guess so yea
The answer is c to your question
14 -16=-2 17-20=-3 it's just regular problems backwards
