Answer: I say the third option 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
D=5/2. 5 over 2
Step-by-step explanation:
Cross multiply and solve for D
 
        
             
        
        
        
Answer:
quadrant 4
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Unless there is more to the question than c = 2 because 30 /5 = 6 and if c is 3 than 3 = 6 so simplify if needed.