Please help with questions 7-10! I have to turn it in soon and I’m so lost!

The graph shown below expresses a radical function that can be written in the form f(x)=a(x+k)1/n+c what does the graph tell you about the value of n in this function

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30