If 54 items are evenly distributed into 6 boxes, how many items are there per box?

To determine how many items are in each box when 54 items are evenly distributed into 6 boxes, you need to perform division. Specifically, you divide the total number of items (54) by the number of boxes (6).

The calculation is as follows:

54 ÷ 6 = 9.

Thus, each box will contain 9 items.

This answer is consistent when considering the requirement that the items must be evenly distributed; if you were to have a fraction or decimal as a result, it would indicate that the distribution isn't even, which doesn’t meet the criteria given in the question. Therefore, the choice that states there are 9.0 items per box accurately reflects the situation and the division required.