Step-by-step explanation:
Transitive property of Angle Congruence
 
        
             
        
        
        
Answer:
∠2
Step-by-step explanation:
A supplementary angle is a 180° angle formed by two angles. ∠3 and ∠2 form a straight line / 180° angle.
 
        
             
        
        
        
The values of k are 4,5,6
 
        
        
        
Answer:
to what??????
Step-by-step explanation: ???????
 
        
             
        
        
        
If the price of paper increases by a lot, then book producers would respond by supplying less books.