7/7 - 4/7 = 3/7
This is the relationship between the quantities
        
                    
             
        
        
        
Sum means add 
(x+5) + (-4x-2) + (2x-1) 
=-3x+3+(2x-1) 
=-x+2
        
                    
             
        
        
        
49 dollars
Step-by-step explanation:
14 times 3 is 42 and 3.50 times 2 is 7, so 42 plus 7 is 49. 
 
        
             
        
        
        
Since it forms a "right triangle" we can apply trigonometry.
sin x = oppo/hyp
sin x = 13/20
x = sin^-1(13/20)
x = sin^-1(0.65)
x = 40.5
rounded to nearest degree
x = 41 degrees
Hope this helps! :)
        
             
        
        
        
Ones place i think would be the awser