8 because inverse operations indicate that 4x2=8
\left[x \right] = \left[ 6\right][x]=[6] totally answer
if she has 9, add 7. you have 16. divide it by half, 8. subtract 3 and you get 5.
100% of the rolls would be less than 13. The highest number on one die is 6, so even if you roll 2 dice the sum of both dice will always be lower than 13.
It's a 1:1 probablility.
