Answer C. 317.8 would be your answer:) Hope this helps!
        
                    
             
        
        
        
Range R={-3-11,1,17}
domain D={-9,-3,5}
        
             
        
        
        
5.476 rounded to the hundrdths is 
5.48
        
                    
             
        
        
        
After you type in your equations and hit graph you notice that, if you are in the standard window, your parabola is cut off so you have to choose your "window" button to change the viewing window to see the whole graph. Then you would use your 2nd button and "trace" and "intersect" to find the points of intersection of the 2 graphs. The first point is at (-.90901, 16.81812) and the second point is at (5.9090909, 3.1818182). Graphing calculators are quite amazing!
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Total bill - the tax = cost of 3CD's
Our total bill is $35.40, the tax is $2.70, therefore,
35.40 - 2.70 = cost of 3 CD's so
3 CD's = $32.70
Divide that by 3 to get the cost per CD:
32.7 / 3 = $ 10.90 per CD