HELP FAST The function M(x) = 5x2 – 160x + 6179 models the number of miles, in
millions, US passengers travel on a train for the period of 1970 to 2000,
where x is the number of years since 1970.

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?