2p+6a=$14
3p+9a=$21
3p+9a=21
Subtract 9a
3p=21-9a
divide all by 3
p=7-3a
plug it into start equations
2p+6a=14
2(7-3a)+6a=14
14-6a....+6a=14
this zeroes out...
1/2 is the probability, or 50%. There are 4 teams of S and B n the Y, 2 are B. so its 2/4
Step-by-step explanation:
