Jacob bought some tickets to see his favorite singer. he bought some adult tickets and some children's tickets, for a total of 9 tickets. the adult tickets cost $10 per ticket, and the children's tickets cost $8 per ticket. if he spent a total of $76, then how many adult and children's tickets did he buy ?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost

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