Answer:
2 is the answers for the question
Step-by-step explanation:
please mark me as brainlest 
 
        
                    
             
        
        
        
Answer: 1st option
Step-by-step explanation:
I've attached the solution
 
        
                    
             
        
        
        
Answer:  10
<u>Step-by-step explanation:</u>
varies directly means: 
Step 1: solve for k   ⇒  
Step 2: plug in the given value and k to solve for the missing value: 
42(5) = 21(x)

2(5) = x
 10  = x
 
        
             
        
        
        
Answer:
i think B
Step-by-step explanation:
because if we think logically...the price have to more than 10-28.All answer except B are illogical for me i think
hope its help 
 
        
                    
             
        
        
        
I think it is (5, -4)... not completely sure though