Given:
The total number of pets can be represented by the expression [tex]y+y+y+y[/tex].
To find:
The expression which is equivalent to the expression for the total number of pets.
Solution:
The expression for the total number of pets is
[tex]y+y+y+y[/tex]
On adding these value, we get
[tex]y+y+y+y=4y[/tex]
Therefore, the expression 4y is equivalent to the given expression for the total number of pets.