Answer: 47 and 16
Step-by-step explanation:
- Make Two Equations
x + y = 63
x - y = 31
- Set one of the equations equal to one of the variables 
x + y = 63
x = 31 + y
- Substitute the equation back into the other one
(31 + y) + y = 63
31 + 2y = 63
2y = 32
y = 16
- Substitute the answer back into the equation
x + y = 63
x + 16 = 63
x = 47
 
        
                    
             
        
        
        
Answer:
1.68 as a percent is 168%. 
Step-by-step explanation:
 To convert 1.68 to a percentage, multiply the number 1.68 by 100.
 
        
                    
             
        
        
        
Answer:
the radius if the measurement of the circle for the center
 
        
                    
             
        
        
        
Answer:
3/8^3
Step-by-step explanation:
its like 1/2 x 1/2 x1/2 its 1/2^3 
or  7x7x7x7x7=7^5 its the same concept....