4y - y + 7y
4y - y = 3y
3y + 7y = 10y
10y is your answer
hope this helps
        
             
        
        
        
Answer:
a reflection across line bc
Step-by-step explanation:
maybe, I think so
 
        
             
        
        
        
<h3>hello!</h3>
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Parallel lines have the same slope.
So if the given line has a slope of 3, then the line parallel to it has the same slope (3)
Now, let's write the equation of the line in Point-Slope Form.
Remember, point-slope form looks like so:-

Where
y₁ is the y-coordinate of the point that the line passes through
m is the slope
x₁ is the x-coordinate of the point that the line passes through
In this case,
y₁ is equal to -8
m is equal to 3
x₁ is equal to 1
Plug in the values:

Simplify:

and we're done!
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<h3>note:-</h3>
Hope everything is clear; if you need any more explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)
 
        
        
        
Maybe if you put a picture I could help you out
        
             
        
        
        
Answer: George can make 2/3 section of fence an hour. 
Explanation: If george can make 1/3 section every half hour than he can make double 1/3 every hour. 
1/3 + 1/3 = 2/3 
He can make 2/3 every hour.