Nick and robert timed a mouse walking 75 meters in 300 seconds. nick says the mouse walked at a rate of 4 meters per second. robert says the mouse walked at a rate of 0.25 meters per second.

Explanation:

The complete question in English is attached.

The equation is:

The commutative property of the multiplication states that the order of the factors do not change the product.

Thus, the product a · b is equal to the product b · a.

In the given equation the order of the factors 2/5 and 5/2 was changed: in the left-hand side it appears 2/5 · (5/2). On the right-hand side it appears as 5/2 · (2/5).

Thus, the equality shows the commutative property of the multiplication of rational numbers.