If there are 200 square feet of space in each bin and the total usable space is 16,000 square feet, how many bins would you need?

To determine the number of bins needed, you start by dividing the total usable space by the space each bin can hold. In this case, with a total usable space of 16,000 square feet and each bin occupying 200 square feet, the calculation would be:

16,000 square feet / 200 square feet per bin = 80 bins.

This calculation confirms that to effectively utilize all the available space, a total of 80 bins would be necessary. The other choices, such as 60, 100, and 120, do not provide the correct number of bins required to fill the specified space, based on the measurements given. Therefore, the only option that reflects this division accurately is 80 bins.