Please help me with this question! (Already did 2 of them)

Will mark brainliest :)

This question awards 100 ! i really don’t want to fail i will also mark you !

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?

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12