If the sum of a two digit number is 4 and the digits are reversed and the difference between the new number is 18; what is the original number?

What is the volume of this square pyramid?

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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