Answer:
Graph A:  y = (1/2)x - 2
Step-by-step explanation:
2x−4y=8 in slope-intercept form is -4y = -2x + 8, or y = 1/2x - 2
The slope of this line is 1/4 and the y-intercept is -2.  This is represented by Graph A.
 
        
             
        
        
        
Answer:
293 feet.
Step-by-step explanation:
Their track is 500 feet, and there are three sections. Add these sections(61+83+63=207) and subtract from the total(500-207=293)
 
        
             
        
        
        
Answer:
x=2.5
Step-by-step explanation:
Solve for x in this systems of equations, we already have two values which equal y so half the work is finished for us.
Starting with the equation:

Add x to both sides to remove the negative x on the right side of the equation:

Subtract 12 from both sides to remove the 12 on the left side of the equation:

Divide both sides by 2 to cancel out the x coefficient

 
        
             
        
        
        
I don’t really know this, but you can try this app called cymath