Ratio of dog bark is 4:5
Multiply that by 20 each side
Ratio is now 80:100
So 80%
If they walk past 45 time you just have to multiply the ratio 4:5 by 9 
36:45
So the dog would bark 36 times
        
             
        
        
        
Add up all the sides which should equal 32
        
                    
             
        
        
        
($43,364.19)Rounded to the nearest cent=($43,364.20)
        
             
        
        
        
Answer:
y = 10
x = 25
Step-by-step explanation:
From the U theorem the sum of these two angles 120+2x+y = 180
same goes for the bottom part too:
2x-y+140 = 180 now add two equations up
120+2x+y + 2x-y+140 = 180 + 180 add like terms (-y will eliminate +y)
4x + 260 = 360 subtract 260 from both sides
4x = 100 divide both sides by 4
x = 25 since the sum of 2x-y+140 = 180 we can find the value of y by replacing x with 25
2*25 - y + 140 = 180
50 - y + 140 = 180 add like terms
190 - y = 180 subtract 190 from both sides
-y = -10 and y = 10
 
        
             
        
        
        
Answer:
Step-by-step explanation:
You have to divide 30/3 like 30 divided by 3 which is 10
 Your welcome