Answer:
The points that intercepts are (4,4) that's what I got. I hope that helps you.
Answer:
The percentage is 
Step-by-step explanation:
From the question we are told that
The population mean is 
The standard deviation is 
The percent of people who write this exam obtain scores between 350 and 650

Generally




From the z-table 
and 
=> 
=> 
Therefore the percentage is 
Your answe would be a>-2 so just plug that in to the line and that will be your answer which is the second one
It can't they have no common factor