Please help! Swimming Pool On a certain hot summer's day, 383 people used the public swimming pool. The daily prices are $1.50 for children and $2.50 for adults. The
receipts for admission totaled $870.50. How many children and how many adults swam at the public pool that day?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?