The Division Property of Equality states that if you divide both sides of an equation by the same non-zero number, the two sides remain equal.
In the equation \( PV = nRT \), we can use this property to isolate \( n \). To do this, we would divide both sides by \( RT \):
\[ n = \frac{PV}{RT} \]
Therefore, the correct response that represents this rearrangement is:
n equals Start Fraction upper P upper V over upper R upper T End Fraction.