Answer:

Step-by-step explanation:
The question have missing details.
Because, the question says she collected some cans "after picnic"; This means that she has some cans "before picnic"
So, we assume that she has x bags of can before the picnic.

So, the total number of bags collected is:


<em>If x is 5, then she took 9 bags of can to the recycling center</em>
<em>If x is 2, then she took 6 bags of can to the recycling center</em>
<em>If x is 0, then she took 4 bags of can to the recycling center</em>