A Gallup Poll surveyed U. S. adults and found that 58% were in favor of phasing out the use of plastic straws. If Gallup wanted to produce a 80% confidence interval and margin of error of 1%,
how much of a sample is needed?

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?

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

What is the inverse of the function f(x) = 2x + 1?