Hello, thank you for taking the time to post your question!
In a standard deck you would start with 13 spades and 52 total cards. So if the first 2 selected are spades that means that you would now have
(13 – 2) = 11 spades
(52 – 2) = 50 total cards, making the probability
11/50, or 0.22
I hope that helps you get moving in a better direction on this type of question! Feel free to reach out if you have any additional questions beyond that :)