1 dozen=12, so add the 2 dozen and you would get 24.
10 assorted cookies,
4 macadamia nuts, &
5 sugar cookies.
Add all this together.
You would get 43.
You are asking the probability is that the cookies she chooses will be oatmeal raisin or sugar.
Well, there are 5 oatmeal cookies, and 5 sugar cookies. So that would be 10/43.
The probability that Kali will choose a oatmeal of sugar cookies is 10/43.
HOPE THIS HELPED! =)