The Associative Property of Multiplication states that the way in which numbers are grouped in a multiplication operation does not affect the product. In other words, for any numbers \( a, b, \) and \( c \):
\[ a \cdot (b \cdot c) = (a \cdot b) \cdot c. \]
Applying this property to the expression \( p \cdot (q \cdot r) \), we can rewrite it as:
\[ (p \cdot q) \cdot r. \]
So, the expression \( p \cdot (q \cdot r) \) can be rewritten as \( (p \cdot q) \cdot r \).