Sphere A has a radius of 3 and a surface area of 9 "pi". If the radius of Sphere A is doubled to make Sphere B, the surface area of Sphere B is how many times greater than the surface area of Sphere A?​

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