Do you have a picture or something to accompany the question? 
        
             
        
        
        
Answer: If Ms. Hartt burns 300 calories in 1 hour, and runs 5 hours in a week, she burns 1,500 calories in a week.
Explanation: 300 x 5 = 1,500
        
             
        
        
        
The answer to that is 80 percent as a fraction is 8/10
        
                    
             
        
        
        
Answer: -1 < x < 1
Step-by-step explanation: Solve for x. 
Graph line is down below! 
Hope this helps you out! ☺
-Leif-