They are equivalent expressions because the multiplication operation of 4(5) results in the number 20.
What are Equivalent Expression?
Equivalent expressions are mathematical expressions that have the same value for all possible values of the variables involved.
Breaking down each expression given:
4(5): This means you're multiplying 4 by 5. When you perform the multiplication, you get 4×5=20.
20: This is a straightforward number, and it's equal to itself,
Therefore, 4(5) and 20 represent the same numerical value, and they are equivalent expressions which means "4 times 5," which results in the numerical value 20