Answer:
Allie got $120, Barbara got $240 and Carson got $80.
Explanation:
This question can be solved by a system of equations.
I am going to say that:
Allie got x.
Barbara got y.
Carson got z.
Divide $440 among themselves
This means that

Barbara gets 2 times as much as allie.
This means that

Carson gets 1/3 as much as barbara.
This means that

Finding x:
Replacing in the first equation.


Multiplying everything by 3




Finding y and z:


Allie got $120, Barbara got $240 and Carson got $80.