What is the simplest form of 2160x8/60x2? assume

I'm so close to finishing all these.

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

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?