Answer:
The price of each book without sales tax
Step-by-step explanation:
 
        
             
        
        
        
Answer:
IT is 41.5 heres the steps 
Step-by-step explanation:
first step 21 divided by 2 = 10.5 
Then you do 10.5 + 1 = 11.5  
then you do 11.5 times 5 =  57.5
Then 2 times 2 times 2 times 2= 16 
then 16 - 57.5 = 41.5 is your answer
 
        
                    
             
        
        
        
Answer:
the same 
Step-by-step explanation:
parralell lines are known for being straight forward and symetrical
 
        
                    
             
        
        
        
       5p - 3q = -39
-     (-2p - 3q = 3)
==> 7p = -42 ==> p = -6
==> p = -6
      -2(-6) - 3q = 3 ==> 12 - 3q = 3 
==>p = -6
     -3q = 3 - 12 ==> -3q = -9
==> p = -6
       q = 3
      
        
             
        
        
        
Answer:
4x-36
Step-by-step explanation:
3x+x=4x