Sunny Morning Farm Stand, Big Champions Farm Stand, and Tru Blu Farm Stand sell pints of blueberries at the prices indicated on the tables. Which table shows the lowest cost per pint?

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?

Combine like terms to make a simpler expression 3z+z

Can someone explain to me how to do