Answer
The three expressions equivalent to the given expression are $(4x)y$, $(xy)4$ and $y(4x)$.
Work Step by Step
According to associative law, in an expression, the numbers can be grouped in any manner.
So, the given expression can be written as the following expression:
$(4x)y$
According to commutative law, in an expression, the numbers operated can be written in any order.
So, the given expression can be written as the following expression:
$(xy)4$
Since, the given expression is also equivalent to $(4x)y$.
Using commutative law, the expression $y(4x)$ is also equivalent to the given expression.
Therefore, the three expressions equivalent to the given expression are $(4x)y$, $(xy)4$ and $y(4x)$.