Hailey is going to use a computer at an internet cafe. The cafe charges an initial fee of $8 to use the computer and then an additional price per minute of usage, t representing time. The cost goes up to $14 after 5 minutes of usage. Make an equation of y=mx+b.

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?