Answer:
The unit rate of the red balloons per green balloons be 4 .
Explanation:
As given
There are 80 red balloons and 20 green balloons each package of balloons.
i.e 80 red balloons = 20 green balloons
Now find out the unit rate in red balloons per green balloon .

Putting the values in the above

Unit rate of the red balloons per green balloons = 4
Therefore the unit rate of the red balloons per green balloons be 4 .