Answer:
At least 19 signatures.
Explanation:
Winston already has 23 signatures, so he has 57 left to go (80 - 23).
There are 3 people collecting signatures, so the equation will be as following:
3x ≥ 57
To break down this equation, 3x because each person is collecting x number of signatures, and 57, because if you add those signatures upp, then it will have to be at least 57, therefore the operator should be ≥ .
If you solve 3x ≤ 57, then you will find that x ≥ 19, so they each have to have at least 19 signatures.
I hope that you found this helpful!