The number of all possible 3-person groups

The number of all possible groups consisting of 1 girl and 2 boys

The probability is
He doesn’t have enough for both to be on at a time but if the cars are on without the train the cars will take up 2.4 meters leaving them with an extra .1 meters of length
Answer:
The answer is x= 9.9
Step-by-step explanation:
3= x/3.3
Switch sides:
x/3.3 = 3
Multiply both sides by 3.3:
3.3x/3.3 = 3* 3.3
Simplify:
x= 9.9
Hope this helped :)
Answer: 3p = 1/2
( p + p + p ) = 1/2