Answer:
7a + 5
Step-by-step explanation:
Distribute using PEMDAS. 
 
        
             
        
        
        
Answer:
  x  = 0
   y  = -2 
Step-by-step explanation:
The given system of equation are: 
    5x + y = -2
    2x - 2y = 4  
The problem here is to find x and y from the expression
    5x + y = -2     ----- i 
    2x - 2y = 4    ---- ii
  So; 
 i x 2 :  10x + 2y  = -4     ----  iii
ii x 5 :  10x - 10y  = 20    ----- iv 
    iii - iv;   12y  = -24 
                    y  = -2 
     Now find x; 
              5x + y  = -2 
              5x  - 2  = -2 
                   x  = 0
   
 
        
             
        
        
        
Answer:
B. √50
Step-by-step explanation:
 is 49 so √49 is 7
So,
since the <u>closest number to 49 is 50</u>, that is the answer.
 
        
             
        
        
        
Answer:
2ax − 6ay + bx − 3
Step-by-step explanation:
The expression is not factorable with rational numbers