I will use a quadratic formula:
 
 
        
        
        
Answer:
Step-by-step explanation:
The sale price is out of the original price so do 424.15 / 499.00 to find what it is out of in decimal form. Multiply your answer by 100 to find the percentage.
So:
424.15 / 499.00 =0.85
0.85 x 100 = 85
So the answer would 85%.
Hope this helps!
 
        
             
        
        
        
Answer:
22/25
Step-by-step explanation:
66/75 = 22/25
Input into equation to confirm
75 · 22/25 = 66
1650/25 = 66
66 = 66, so we're right
 
        
             
        
        
        
Answer:
(a) 
(c) 
Step-by-step explanation:
(a) To find verify the answer we need to multiplying the equation  

Thus, this statement is true.
(b) To find verify the answer we need to multiplying the equation 

Hence, the given statement is false.
(c) To find verify the answer we need to multiplying the equation 

Hence, the given statement is true.
(d) To find verify the answer we need to multiplying the equation

Hence, the given statement is false.
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
What to do??