If you roll two six sided dice, what is the probability of getting a 9 or higher

27.78%

There are 6^2 = 36 possible outcomes of rolling two fair six-faced dice. There are 10 outcomes with sum 9 or higher. There the required probability is 10/36 = 5/18 = nearly 27.78% chances of getting a sum of 9 or higher on rolling two 6-sided dice.