The answer is equal the lengths change when a shape is dilated but the ratio of it does not
        
             
        
        
        
The polynomial that represent twice the sum of  - x +6 and 7
 - x +6 and 7 + x -1 is : 4
 + x -1 is : 4 +10
+10
<h3>What is a polynomial?</h3>
A polynomial is any  algebraic expression that has the least value of the power of  its variable as 2.
When the highest value of the polynomial is 2, it is a called a quadratic expression.
Analysis:
2( -5 -x +6 + 7
 -x +6 + 7 +x -1)
 +x -1)
2( 2 + 5) =
 + 5) = 
4 + 10
 + 10
In conclusion, the polynomial that represents the above  expressions is 4 + 10
 + 10
Learn more about polynomials: brainly.com/question/2833285
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It is positive 6x. Hope this helps!
        
                    
             
        
        
        
Answer:
-7g+13
Step-by-step explanation:
b) because combining like terms results in:
g-8g=7g 
and
15-2= 13