Let a and b be real numbers where a doesnt equal b doesn’t equal 0

What is the value of x in the diagram below?

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

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