Round 23 miles per hour to the nearest ten miles per hour

What is the slope of the line shown below?

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is