A soccer team has 20 members. The team wants to purchase a mixture of sweatshirts and jackets so that each team member receives either a sweatshirt or a jacket. The soccer team spends $ 816. Each sweatshirt costs $ 32 , and each jacket costs $ 54. If x represents the number of sweatshirts, and y represents the number of jackets, which system of equations represents the situation?

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?