Simplify 4 to the 7th over 5 squared all raised to the 3rd power. (4 points)
Group of answer choices

4 to the 10th over 5 to the 5th

4 to the 4th over 5

4 to the 21st over 5 to the 6th

12 to the 7th over 15 squared

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?