Answer:
40/90 is 0.4(it goes on for ever)
Explanation:
What is the product of multiplying: The product is the result or answer of multiplying the multiplicand by the multiplier.
What is the product of Adding: Definition of addition product : a product formed by chemical addition
What is the product of Subtracting: Subtraction is an arithmetic operation that represents the operation of removing objects from a collection. The result of a subtraction is called a difference.
Hope this helps