> your welcome :) and tell me if it’s right
You just multiply top times top and bottom times bottom and then find a number you can divide into the number and you keep doing that until you can't simplify any more.
The median would be: 7.9
and the mean would be:7.4714285714 (you are able to chop that down a bit if needed)
I'm still doing the rest but number 1 is D
Answer:

Step-by-step explanation:
Given : 
In order to find
we will substitute
for
in the given function, that is :

