First term:  -9
Common difference:  7
a(n) = -9 + 7(n-1), for n = {1, 2, 3, ... }
Check:  what is the first term?  let n=1.   Then a(1) = -9 + 7(1-1) = -9.  
This is correct.
        
                    
             
        
        
        
Answer:
352
Step-by-step explanation:
Simple area problem just do 16x22 sorry for poor explanation
 
        
                    
             
        
        
        
C.AAS 
Because vertical angles are congruent.
        
                    
             
        
        
        
Answer:
m = 2/5
Step-by-step explanation:
easy
 
        
             
        
        
        
y-3=3(x+1)
opening the bracket
y-3=3x+3
y=3x+3+3
equation of the line in the form y=mx+c;
y=3x+6
therefore gradient=3
parallel lines have same gradient therefore gradient of the other line is 3
y--3/x-0=3
y+3=3(x-0)
y+3=3x-0
y=3x-3.