Answer:
1/2
Explanation:
To find the probability of what the first person will pick, you first need to add up all the options. There are 30 chocolate chip cookies, 20 sugar cookies, and 50 brownies. Add these together to get 100 total desserts. This means that brownies represent 50 out of the 100 options. So, create a fraction using these numbers, 50/100=1/2. Since 1/2 of the options are brownies, there is a 1/2 probability that the first person will pick a brownie.
