I don’t understand this and I do K12 I need this answer really quick please help

Which of these tables represents a non-linear function?

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

What is the sum of these mixed numbers 4 2/3+ 3 1/9