A university class has 474 students enrolled, 45 of whom are juniors.
What is the probability that a randomly chosen student will be a junior?

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?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with