Answer:
4
Explanation:
The limit for the total weight is 64 ounces.
Knowing this, we should take away the weight of the shipping box from the limit to see how many pants we can fit.
64 - 8 = 56
This means that the weight of how many pants we can fit must be equal to or less than 56 ounces.
Divide 56 by 12 (weight of each pair of pants)
56/12 = 4 remainder 8
There is still some leftover space, but if you added another pair of pants it would be going past the limit, so the greatest number of pants Kaley can mail in one box is 4.