The simple interest i on an investment of p dollars at an interest rate r for t years is given by i=prt. find the time it would take to earn $1400 in interest on an investment of $27,000 at a rate of 4.2%.

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