Answer:
sqrt 2
Step-by-step explanation:
 
        
             
        
        
        
Answer: I believe that its 14
Step-by-step explanation:
 
        
             
        
        
        
Answer:
26
Step-by-step explanation:
2(9)-(-3)+5
2(9)+3+5
18+8
26
 
        
                    
             
        
        
        
Answer:
-52, and the opposite of this is 52.
Step-by-step explanation:
If we are losing 52 pounds, then our number is -52 since we are losing 52 pounds (adding a negative number to a positive number is the same as subtracting that number).
The opposite of a number is when we negate the number, or multiply it by -1. 
A negative number times a negative number is a positive number.

Hope this helped!