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▹ Answer
<em>b = -11</em>
▹ Step-by-Step Explanation
b + 9 = -2
      -9   -9
b = -2 - 9
b = -2 + -9
b = -11
Hope this helps! 
- CloutAnswers ❁
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Answer:
I believe it is B tell me if I am wrong please
 
        
             
        
        
        
Answer:
4√7
Step-by-step explanation:
5√7 +   √7 -  2√7
Taking out common term, √7.
= √7 ( 5 + 1 - 2)
Simplify the terms in the bracket.
= √7 (4)
= 4 √7
 
        
                    
             
        
        
        
Answer: 4 I think . not sure
Step-by-step explanation: