Answer: 8
Step-by-step explanation:
Given
Mean of the numbers is 8
If the ratio is 1:1:2:2:3:3
Suppose the numbers are 
Write the mean of the numbers

So, the numbers are 
As the total numbers are even, median is the sum of the middle values

Answer:
z < 8
Step-by-step explanation:
Add 3 to both sides
8 > z OR z < 8
Answer:
D. Reflection across x-axis
Step-by-step explanation:
When plotting the two points & then connecting the dots, it will not touch y-axis at all - it will be straight line and cross x axis
Answer:
See attached
Step-by-step explanation:
The proof is attached
Is there supposed to be an equation that follows? Can I see the entire question?