Which visual representation correctly describes the relationships between the sets and subsets of rational numbers?

Select the best attribute for the angle pair formed by two parallel lines intersected by a transversal.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?