21x -15 + 5 = 10x - 5
21x -5 = 10x
11x = 5
x = 5/11
        
                    
             
        
        
        
1)
 36/3 x 42/3 = 12yd x 14yd
 12×14=168
you will need 168 square yards to recarpet the kindergarten. 
2)
 168×24.99=4198.32
it will cost $4198.32 to recarpet the kindergarten. 
3)
 3.5 is 35% of 10
 4198.32÷3.5=1198.52
they will need to sell 1199 coupon books to completely pay for the the recarpeting.
        
             
        
        
        
Answer:
91/60
1.516
1 31/60
Step-by-step explanation:
comment how it helps 
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
1. calculate the expression
2.multiple reorder
3.remove parenthesis
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Solution is below as well as graph for proof