Answer:
9) 28
10) 22
Step-by-step explanation:
collinear means on the same line 
9 ) AB+BC=AC 
     16+12=28
10) 13+9=22 
 
        
             
        
        
        
Given functions are 


The total number of ducks and swans in the lake after n months can be determined by adding the functions s(n) and d(n).





Taking 2 as common, we get

Hence The total number of ducks and swans in the lake after n months is 
 
 
        
             
        
        
        
Answer:
1. k=1,  b=1
2. k=-1, b=-0.5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The number missing on the number line is<em> </em><em>(7)!</em>
There should be <em>(2)</em> dots above the number 4.
There should be <em>(4)</em> dots above the number 6.
A good title for the dot plot is;
(<em>Age you lost your first tooth!!!)</em>
<em></em>
-- <u>I hope this helped!!Could i get brainliest if i'm correct please?--</u>