So we can use the following digits: 4,5,6,7,8,9
and we need three numbers with 8 digits each. Here are some examples: 
1) 
45 678 999 (you can also write 45,678,999 for easier reading)
2) 44 456 789 (you can also write 44,456,789 for easier reading)
3)45 678 456 (or 45,678,456)
        
             
        
        
        
Answer:
See below.
Step-by-step explanation:
An example would be:
3x^2 + 6
and 
3(x^2 + 2) .
The second way is found by dividing the first one by 3).
 
        
             
        
        
        
Answer:
x = -1
Step-by-step explanation:
y = 5 is a horizontal line
It's perpendicular would be a vertical line of the form:
x = a
Since it passes through (-1,-3)
a = -1
Hence line is: x = -1
 
        
             
        
        
        
Answer:
4x + 1
Step-by-step explanation:
Multiply f + g by x because f + g is in parenthesis:
f(x) + g(x)
Then implement equation #1 for f(x) into our equation:
3x - 1 + g(x)
Then implement the other equation for g(x) into our equation:
3x - 1 + x + 2
Then switch the positions of -1 and +x:
3x + x - 1 + 2
Simmplify:
4x + 1
Pls consider giving my answer the Brainliest! Because it would help and mean a lot! ; )
 
        
             
        
        
        
Answer:
d y=4x + 5
Step-by-step explanation:
Is parallel beacause they have the same slope, remember 
y=ax + c
where a is the slope of the line