Answer:
56°
Step-by-step explanation:
Since triangle ABD and triangle CBD are congruent (SAS), so you can divide m∠ABC by 2 to get the m∠ABD and m∠CBD, or 56°.
 
        
             
        
        
        
Answer:
138 students
Step-by-step explanation:
207/9 = 23
23*6=138
 
        
                    
             
        
        
        
If you want the answer youse a calculator or do 21 divided by 38
        
             
        
        
        
Answer:
option 2
Step-by-step explanation:
consider the coordinates A (- 3, 4 ) and A' (- 1,  )
 )
since the dilatation is centred at the origin, then corresponding coordinates are multiples/ divisors of each other, then image to original gives scale factor.
scale factor =  =
 =  =
 =  and
 and  =
 = 
similarly B (1, - 2 ) and B' ( , -
, -  )
 )
 =
 =  and
 and  =
 = 
 
        
             
        
        
        
That creates the number 82,190