The baker is stating that 7x13=28. This cannot be correct because if there are 7 officers and if each got 13 donuts than the actual amount of donuts required would be 13+13+13+13+13+13+13 which equals 91 which means the baker would have to bake 91 donuts in order for each of the 7 officers to get 13 donuts apiece. This could also be checked to see if my answer is correct by dividing 91 donuts between 7 officers which makes 13 donuts a piece.

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