Answer: 
For each hour Cara works, she earns $10.
Step-by-step explanation:
You could see that on the graph that for 5 hours Cara has worked, she earns 50 dollars. The slope would be 50/5. 50/5 is equal to 10/1 through dividing so Cara earns $10 for each hour she works.
 
        
             
        
        
        
The answer is 356.33. I used the formula for circles.
        
             
        
        
        
Answer:
y = 4/5x
Step-by-step explanation:
Her ya go!