Help me with this pls

What is the logarithmic function modeled by the following table? x f(x) 9 2 27 3 81 4

How do you determine whether a relationship represented as as graph is linear or nonlinear

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?