Carol bought 8 identical boxes for a total of $3.60. how much did each box cost?

Well we know that she bought 8 boxes. So there's no question as to what the number of boxes is. So choice C is out. We're given the cost of 8 boxes, so that's also not unknown either. So choice B is out. So the answer is choice A. This makes sense as we want to find the unit cost.

I think the answer is .45 because if you divide 3.60 by 8 the answer will be .45.

Use a calculator basically