Step-by-step explanation:



Hence
You have to put:

And

Which results in:

And

The solution is:

14: 1 × 14
2 × 7
56: 1 × 56
2 × 28
4 × 14
7 × 8
63: 1 × 63
3 × 21
7 × 9
GCF(14, 56, 63) = 7
1.44 per kg
take 1.3 x 2, then subtract 12.7, finally divide that by 7
Step-by-step explanation:
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