In this case, one computes the molar mass for the given empirical formula as follows:
In such a way, one computes how many times the molecular formula's molecular mass is contained into the empirical formula's molecular mass in order to determine the whole number relating them as shown below:
Finally, the molecular formula is three times the empirical formula, hence:
Some policies they might do is to put limits on water usage, like making sure that people don't use too much water in baths and when they are tending to their gardens.