Rafael Ramirez is the lead food and beverage supervisor at a small restaurant. He is paid $14.40 an hour for a regular 40-hour week. His
overtime pay is 13 times his regular hourly rate. This week Rafael
earned $921.60 in total pay. How many hours of overtime did he work?

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?