Which expression should be used to estimate the answer to this story problem? travis planned to watch 4 dogs while his neighbors were out of town for a week. each dog would need to eat 612 ounces of dog food. how many ounces of dog food were needed for all the dogs? a. 600 + 4 b. 600 – 4 c. 600 × 4 d. 600 ÷ 4

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