How can you use scale models to solve problems

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

If f(x)=-3x+2 and g(x)=-7x-2, which point represents f(x)=g(x)?

There are four paths from the cabin to the lake. in how many ways can you walk from the cabin to the lake back?