Gerardo owns a bakery. He ordered 8 pounds total of peanuts and raisins (packaged separately). Peanuts cost $1 per pound and raisins cost $2 per pound. He spent a total of $10. How many pound of peanuts did Gerardo order? Hint: define what x and y will be write 2 equations graph and find the solution

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?