Tickets for the movies are $7 for adults and $4 for children. Fourteen people paid a total of $68 for tickets. Howmany were adults and how many were children?

Of 400 people at the school carnival, 95% are students and the rest are teachers. a. how many students are at the school carnival? b. if 55% of the students at the school carnival are boys, how many are girls? c. how many teachers are at the school carnival? d. if 35% of the teachers are male and the rest are female, how many female teachers are at the carnival?