Answer:
the answer is $50 for the full price of the sweater
Step-by-step explanation:
if you know $20 is 40% what is 20% it is $10 and then multiple it by 5 because  20 times 5 is 100 and you get 50
 
        
             
        
        
        
Answer:
c=602 is the answer i will explain later 
 
        
             
        
        
        
Answer:
1 is the coefficient. 
There is no number Infront of variable.Hence if there is no number thrlere is 1. xysquare 1 is the coefficient,X and y are base and square is Exponent.