4x+11+7x-6+43= 180 
11x = 132 
x = 12 
7(12)-6 = 78 
RTS = 78 degrees
        
                    
             
        
        
        
Since there is nothing attached for me to help you I looked for a website that can find the answer with an explanation. It is called quickmath it’s like a math calculator . Hopefully that helps you .
 
        
                    
             
        
        
        
Answer:
When a line is parallel to another line, they have the same slope. So far the equation would be, y=4x+b. To find the value of b, substitute the given point into the equation. 
8=4(-1)+b
8=-4+b
b=12
So, the equation of the line is y=4x+12.
:)
 
        
             
        
        
        
Juan's time = x
Yumi's time = x + 2
Yumi's distance = 3 miles
Juan's distance = 2 miles
Rate = distance/time
Juan's rate = 2/x
Yumi's rate = 3/(x + 2)
The rates are equal so:
2/x = 3/(x + 2)
2x + 4 = 3x
x = 4 hours
Yumi's time = 4 + 2 = 6 hours
The answer is D.