The voltage in an electricity circuit is multiplied by itself each time it is reduced. the voltage is 27/125 of a volt and it has been reduced three times. what was the original voltage in the circuit?

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