Answer:
Number of cups of regular coffee the shop sells = 3d
Step-by-step explanation:
Let
d = cups of decaffeinated coffee
Three times as many cups of regular coffee as decaffeinated coffee. 
Number of cups of regular coffee the shop sells = 3d
 
        
             
        
        
        
I believe the answer is-
a) 80
b) 130
c) 250
        
             
        
        
        
Answer:
-14n - 2r - 21
Step-by-step explanation:
 
        
             
        
        
        
I am sorry this is where I can get too.