What is an easy formula for finding the total surface area of a triangular prism?

Which graph represents the following piecewise defined function?

Icould really use some with this question.

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