Answer:
It equals 10.5
Step-by-step explanation:
 
        
                    
             
        
        
        
Old price: p1 = $ 3.90;
New price: p2 = $ 3.40.
The percentual decrease is given by
d(%) = [ (p2 - p1) / p1 ] * 100 %
d(%) = [ (3.40 - 3.90) / 3.90 ] * 100 %
d(%) = [ - 0.50 / 3.90 ] * 100 %
d(%) = - 0.128 * 100 %
d(%) = - 12.8 % (approximately)
So the price fell 12.8 % approximately.
I hope this helps. =)
        
             
        
        
        
10 5's go into 55 and
1 10 goes into 11
 The answers I gave are only if you want them in 10's
        
                    
             
        
        
        
Joe is positive 986 yards
Ziggy is negative 118 yards
the total difference is 986 +118 = 1,104 yards
 
        
             
        
        
        
X= -292 1/2
the picture should explain, but i can explain further