it would be equation c, since you are you going upstream and the current would be going down stream
 
        
             
        
        
        
8 goes into 74 nine times but there is a remainder of 2 
9 and a remainder of 2       or        9 and 1/4
        
                    
             
        
        
            
            
                One line passes through the points \blueD{(-3,-1)}(−3,−1)start color #11accd, (, minus, 3, comma, minus, 1, ), end color #11accd 
                mart [117]             
         
        
Answer:
The lines are perpendicular
Step-by-step explanation:
we know that
If two lines are parallel, then their slopes are the same
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
Remember that
The formula to calculate the slope between two points is equal to
 
<em>Find the slope of the first line</em>
we have the points
(-3,-1) and (1,-9)
substitute in the formula
 
 
 
<em>Find the slope of the second line</em>
we have the points
(1,4) and (5,6)
substitute in the formula
 
 
Simplify
 
<em>Compare the slopes</em>
 
 
Find out the product

therefore
The lines are perpendicular
 
        
                    
             
        
        
        
 construction of an angle bisector
 of 60° into 30°and 30°
 
        
             
        
        
        
YZ ║ XT
RS ║ XZ
XY ║ TS
I am not a professional, I am simply using prior knowledge!
Note- It would mean the world to me if you could mark me brainliest!