Help important need it ASAP explain

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?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the