Answer:
markup 3 dollars a shirt. Total markup 900$
Step-by-step explanation:
 
        
                    
             
        
        
        
I would say go with with B
        
                    
             
        
        
        
False 
 A arithmetic sequence is a sequence that has a difference of 2. We see that we have -17 ... and then we have 2 ... and then 21. There is NOT a difference of 2, as we can see. Therefore, yiur answer would be (false).
 
        
             
        
        
        
Answer:
D=6
Step-by-step explanation:
So, first, we can multiply 7x2=14. Then, it would be D+14=20. 20-14=6, so D=6.