Change X and Z. X is first evening 
Y is second
Z is third evening
 
        
        
        
Answer:
y=-3x+7
Step-by-step explanation:
y=mx+b is the formula you are going to end up once completed.
This, by given two points:
(4,-5) (3,-2)
 = Point-Slope Intercept Form
 = Point-Slope Intercept Form
 = After subtracting both from above
 = After subtracting both from above 
-3 = is your slope, decreasing.
Substitute -3 for y=mx+b
y=-3x+b
Use one of the given points (any) to find what b equals.
(4,-5)
x    y
-5=-3(4)+b
-5= -12+b
7=b
Final Equation:
y=-3x+7
 
        
                    
             
        
        
        
Answer:     
-44
Step-by-step explanation:     
 
        
             
        
        
        
Answer:
Angle ZXY = 41 degrees.
Step-by-step explanation:
If WX is parallel to ZY then angle XZY = 71 degrees. 
Angle ZXY = 180 - 68 - 71 = 41 degrees.
 
        
             
        
        
        
Answer:
58 degrees
Step-by-step explanation:
subtract 122 from 180