The answer to your question is 2, I hand wrote this problem and doubled check using a website called m a t h w a y . c o m, if i knew how to insert a picture of my writing i would
 
        
                    
             
        
        
        
Answer:
A. 1⁄2 < 3⁄4
Step-by-step explanation:
1/2   vs 3/4
Get a common denominator of 4
1/2 *2/2   vs 3/4
2/4   vs 3/4
2 is less than 3
2/4 < 3/4
1/2 < 3/4
 
        
             
        
        
        
Answer:
Step-by-step explanation:
m = 4
![y -y_{1}=m(x -x_{1})\\\\y - 4 = 4(x -[-1])\\\\y - 4 = 4(x + 1)\\\\y -5= 4x + 4\\\\y = 4x + 4 + 5\\y = 4x + 9](https://tex.z-dn.net/?f=y%20-y_%7B1%7D%3Dm%28x%20-x_%7B1%7D%29%5C%5C%5C%5Cy%20-%204%20%3D%204%28x%20-%5B-1%5D%29%5C%5C%5C%5Cy%20-%204%20%3D%204%28x%20%2B%201%29%5C%5C%5C%5Cy%20-5%3D%204x%20%2B%204%5C%5C%5C%5Cy%20%3D%204x%20%2B%204%20%2B%205%5C%5Cy%20%3D%204x%20%2B%209)
 
        
             
        
        
        
Answer:
all work is shown and pictured
 
        
                    
             
        
        
        
To solve your question, you add all of the measurements together, set them equal to 180, solve for x, and plug x back in for whichever angle they are asking for; in this case, they want angle R 
7x + 12x + 20 + 20x - 35 = 180
39x - 15 = 180
39x = 180 + 15
39x = 195
x = 5
Angle R = 12x + 20
12(5) + 20
60 + 20
80
Option C is your answer.