The population is the entire group of people that Walter is studying. What is the population Walter wants to study?​

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?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

2/3(-6y+9x) expand each expression using the distributive property