Answer:
3 4/5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
He did 9 times 10 instead of 9 times 100.
 
        
             
        
        
        
Answer:
a
Step-by-step explanation:
 
        
             
        
        
        
There are 153 people who each ate 1/4 pounds. Therefore, the amount of watermelon eaten is 153/4 pounds.
The amount of watermelon served is





There is 186/4 total watermelon. Minus the 153/4 that was eaten,

The leftover watermelon is 8 & 1/4 pounds.
 
        
        
        
Add the two angles and set them equal to 180, them solve for x