Answer:
The answer is 80 degrees, I believe 
 
        
             
        
        
        
Answer:
a. 3.9714285714 b.1.404040404
Step-by-step explanation:
13.9/3.5
13.9/9.9
I do not know if this is correct, but give it a try.
 
        
                    
             
        
        
        
It would take 6 weeks for Cole to make 750$ and the 65$ he had received from the open mic would make it 815$
        
                    
             
        
        
        
Slope-Intercept form - y = 4