The monthly profit for a company that makes decorative picture frames depends on the price per frame. The company determines that the profit is
approximated by f(p = -80p +2560p - 17,600, where p is the price per frame and f(p) is the monthly profit based on that price. find the price that generates maximum profit

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?