Last year, frank opened an investment account with $6400 . at the end of the year, the amount in the account had increased by 29.5% . how much is this increase in dollars? how much money was in his account at the end of last year?

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