if she bought the shirts you have to double 3:50 which equals $7 so double 7 it is 14. So Dave spend half that amount which would be 3:50 
 
        
                    
             
        
        
        
Answer:
N=625/3
Step-by-step explanation:
1) 0.25 ⋅ 1.44N=75
2) 0.36N=75
3) 0.36N/0.36 = 75/0.36
4) N= 625/3
Hope that helps
Have a good day
 
        
                    
             
        
        
        
Answer:
-3/2
Step-by-step explanation:
One can read off the slope of the given line directly from the graph.  As x increases by 3, y increases by 2.  Thus, the slope of the given line is
m = rise / run = 2 / 3
Any line perpendicular to this given line has a slope which is the negative reciprocal of the slope previously found:
                                                       -1              3
Slope of perpendicular line = ------------ = - ----- 
                                                      2/3             2
This matches the first of the given possible answer choices.
 
        
             
        
        
        
Since the diameter is twice the radius, the diameter is 44.
2*22=44
:) I hope this helps!