Answer:
$890.4
Step-by-step explanation:
840 + .06(840)
840 + 50.4
890.4
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
<u>Given Equation is:</u>

Adding 9 to both sides
=> 
=> 
Multiplying 2 to both sides
=> -3x = -18 * 2
=> -3x = -36
Dividing both sides by -3
=> x = 12
 
        
                    
             
        
        
        
519.99(.0825) = 42.899
519.99 + 42.899 = $562.89