Ms. wall will roll a single number cubes. what is the probability that she will roll an even number?

Well single number, meaning from 1 - 9. She has a higher chance of getting an odd number for sure, as there are more odd numbers on the dice :) So, the ratio is 4:5 and fraction: 4/5. %44.444 is your answer :) 

Thank you,
Darian D.

Wow. that is a really cool question.