How to find the scale factor, ratio of area, & ratio of volume?

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?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

An octagonal prism has jow many lateral faces?