Area of the right triangle?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

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?

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?