Answer:
i think that your suppose to divide add and subtracct.
Step-by-step explanation:
Hope this helps.
 
        
                    
             
        
        
        
Answer:
B $6.50
Step-by-step explanation:
We need to find the slope
This is given by 
m = (y2-y1)/(x2-x1)
    =(32.5 - 13)/(5-2)
    =19.5/3
    = 6.5
 
        
                    
             
        
        
        
Answer:
D.
Step-by-step explanation:
6.52^2 = 42.3 according to the table so 6.5 should be a good estimate.
 
        
             
        
        
        
(2 × 10) + (4 × 1) + (3 × 1/10) + (5 × 1/100) + 
(7 × 1/1000)
        
             
        
        
        
Let the initial count of his fish be n.
He gives away 2/3 of these fish:  2n/3, leaving n/3 fish.
He gives away 2/5 of these remaining n/3 fish:  (2/5) times (n/3), or 
2n
--- , meaning that (3/5) times (n/3) fish are left.
15
(3/5)(n/3) = n/5 fish left = 30 fish.  Thus, n = 150 fish.
Be certain to check this answer!