Answer:
-1/2
 if it's not right let me know
Step-by-step explanation:
 
        
             
        
        
        
The right answer is -2/3
please see the attached picture for full solution
Hope it helps..
Good luck on your assignment..
 
        
                    
             
        
        
        
To find f(2), you just need to replace x for 2.
1/3•4^(2)
The answer is 16/3 or 5.3333...
        
                    
             
        
        
        
1 and 2 are natural numbers
-7  belongs to set of integers
sqrt 11  is a member of the set of irrational numbers
        
             
        
        
        
Answer:
1. $60
2. 600 Calories were burned 
3. D
Step-by-step explanation:
1. $75 x .20=$15
75-15=$60
2. What I started with is 200/40=5 calories burned per min
60 plus 60=120
5x120=600
3. It's the only option that has something decreasing. and there is a -5 which means it's getting subtracted or its decreasing.