Answer:
B. 88.5
Step-by-step explanation:
first we add all the numbers :
(79 +80 +92 +92 +81 +100 +88 +98 +71 + 100+91+90) over 12 
= 1062 over 12
= 88.5 
[why over 12? because there's 12 numbers]
 
        
             
        
        
        
Answer:
Step-by-step explanation:
20-pack of Dr. Pepper cost $5.50 . As per this deal
   Cost of one pack = 5.5/20 = $ 0.275
a 6-pack cost $1.50.As per this deal
   Cost of one pack = 1.50/6 = $ 0.25
A 6-pack cost $1.50 is the better deal.
 
        
             
        
        
        
I think it’s 9+2 because it say sum
        
                    
             
        
        
        
What exactly are we solving?? the rest of the angles or the perimeter?