Question 1)
The answer is B because all the points correlate.
Question 2)
Your numbers are:
2,2,4,5,6,7,8, and 9.
[tex] \frac{2+2+4+5+6+7+8+9}{8} =5.375[/tex]
Since it says "1 decimal place" the answer is 5.4
Question 3)
Your numbers are:
1,2,3,3,4,5,7, and 8.
Start crossing them out.
1-2-3-3-4-5-7-8
2-3-3-4-5-7
3-3-4-5
3-4
Since your left with 2 numbers, you go in between.
3.5