An internet service provider charges a $35 sign-up fee and $40 per month for an internet plan. Which representation shows the relationship between the number of months, x, and the total cost of the internet plan, y? What is it?

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?