Answer:
think ab = 4
Step-by-step explanation:
 
        
             
        
        
        
I believe it is B, as C and D both are based on the number of books sold while the only variable to determine the amount of money she earns are the additional doors she knocks on.
        
                    
             
        
        
        
Give me a question i can answer. i might could help.
        
             
        
        
        
90°+b+b =180
90°+ 2b=180
2b=180-90
2b= 90
<u>2</u><u>b</u><u>=</u><u>9</u><u>0</u>
<u>2</u> = 2
b=45° 
ave tried I don't know if its correct 
 
        
             
        
        
        
Sorry I don’t know what the answer is