A clothing store bought packages of three pairs of socks for 1.75 the store owner marked up the price by 80 percent what is the retail price after a month the store owner marks down the retail price by 20 percent what is the sales price

This is so hard and it’s for a test

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

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?