Which two equations have a solution of x=16

Find the balance at the end of 4 years if 1000 is deposited at the rate of

The volume of a cube is 8 in to the 3rd power. how long is each side?

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?