Question

Please help, screenshot!

Answer 1

4/7

9 girls + 12 boys = 21
Boys/total = 12/21
12/21 divided by 3 = 4/7

Answer 2

4/7

Explanation:

class total = 21

chance of picking one of 12 boys out of 21.

12/21 which can be simpilfied to 4/7