To estimate you would round the numbers, so it would be 7,000 - 4,000 = 3,000. 
        
             
        
        
        
Answer:
-24
Step-by-step explanation:
3 * -4 =.-12
-12 * 2 = -24 
 
        
                    
             
        
        
        
<span>2 3/4 = 2.75
so 
</span>2 3/4  = 2.75%
        
             
        
        
        
A: Adults
C:children
P: people
A= 2/9 P
C= A+95
P= A+C
 = 2/9P + 2/9P+95
 = 4/9 P+95, add -4/9P for both sides (same terms, same sides:))
P- 4/9P= 95
5/9P= 95
P= 171 people in the restaurant 
Adult= 2/9*171= 38 Adults
Children= 38+95= 133 children
        
             
        
        
        
1/6 because 3 goes into 3 once, and 3 goes into 18 6 times. So the fraction is 1/6