If c(x)=3x-1 and k(x)=x^2-2x+1, what is the value of (c°k)(5)

The parabola opens: y=√x-4 (principal square root) up down right left

In a tutoring session, 2/3 of an hour was spent reviewing math problems. adelina attended 3/4 of the tutoring session. how much time did adelina spend at the tutoring session?

Iwas absent when my class learned this and my teacher is to lazy to teach it to me explain this to me .