The common factors for 20 is 1,5
25 is 1,5
40 is 1,5
GCF:5
Above is postive. So the answer is +300
Answer: The required probability is 
Step-by-step explanation:
Since we have given that
Number of kids = 10
Number of kids in Team A = 5
Number of kids in Team B = 5
There are three kids in the group, Alex and his two best friends Jose and Carl.
So, number of favourable outcome is given by

Total number of outcomes is given by

So, the probability that Alex ends up on the same team with at least one of his two best friends is given by

Hence, the required probability is 
The answer is A
-4x +3y + z + 2
Not sure if this is what you are looking for but welp