Answer: 14500
Step-by-step explanation:
Let the price of the mobile phone before the GST was added be represented by x.
Therefore, 
x + (12% × x) = 16240
x + 0.12x = 16240
1.12x = 16240
x = 16240/1.12
x = 14500
The price of the mobile phone before the GST was added was 14500
 
        
             
        
        
        
C. Buying it a percent discount without sales tax.
Because of not having to pay $10, so it is awesome.
        
             
        
        
        
Answer:
No solution
Step-by-step explanation:
Original Equation:
5x - 5 = 5x + 7
Add 5 to both sides
5x = 5x + 12
So we already know that this equation is not true, making it no solution
Hope this helped
 
        
             
        
        
        
Answer:
question 3: 1/3 question 4: 5/7 question 5: 2/3
 
        
                    
             
        
        
        
360 / 3 = 120
120 hamburgers • 2 = 240 hotdogs