At tanika's school, 3 people are chosen in the first round. each of those people chooses 3 people in the second round, and so on. how many people are chosen in the sixth round?

Can some one me with this math problem?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

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