Answer:
b. 8.7
Step-by-step explanation:
7 rounds up turning the 6 besides it into a 7. 
 
        
                    
             
        
        
        
1 ounce = 28.3495 grams
13 x 28.3495 = 368.544 grams
 round answer as needed
 
        
             
        
        
        
I believe -4 hope this helped
        
             
        
        
        
It is a good pic, good quality and all that
        
             
        
        
        
11^2=121
12^2=144
You can write either 11 or 12.