Answer:
560
Explanation:
i say this because if 280 is only 50%, then you need to find out how to get to 100%. we already know that 50% is half of 100%. now all you need to do is multiply 280 by 2 to get 560! hope this helped :)
Because it said that 280 is half of the gumballs so 280*2 is 560
Hope this helps:)
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