Jen needs to save $180 for a new camping tent. she is able to save $9 each week. how many weeks will jen need to save to reach her goal? draw a picture and write an equation to solve the problem. explain how you found your answer

I'll give brainliest if you answer right : )

Which of the following is the result of expanding

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- 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. 3- 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 part b?