Audrey has a bag of similar-sized red and green grapes. there are 12 red grapes and 13 green grapes in the bag. if the first 7 grapes she ate were green what is the probability that the 8th grapes she eats is green and the 9th grape she eats is red?

*the probability of the 8th grape being green is 6 out of 18 because she already ate 7 and there was a total of 25 grapes so 25-7=18

*the probability of the 9th grape being red is 12 out of 17 because she ate 8 grapes and there was a total of 25 grapes so 25-8=17

* by the way you get 25 grapes total because there are 12 red grapes and 13 green grapes so 12+13=25