I need help with a math problem ​

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

What is not true about kl and mn? what is mn? (show your work)

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?