Given that line K is parallel to line L and line J is perpendicular to line L, the relationship between like J and K is also perpendicularity. That is, if lines K and J also meets or intersects at a right angle (90 degrees), similar to how line J and L intersects, then they're said to be perpendicular. 
        
             
        
        
        
The second question is (x-5)(2x+7)
 
        
        
        
Answer:
$481.25
Step-by-step explanation:
The formula for simple interest is i = p*r*t, in which p is the principal, r is the interest rate as a decimal fraction, and t is the time in years.
Here p = $3500, r = 0.055 and t =2.5 yrs, and so the simple interest is
i = ($3500.00)(0.055)(2.5 yr), or
i = $481.25
 
        
             
        
        
        
Answer:
15-6x= -12-4x
15-2x= -12 
-2x= -27
x= -13.5
Step-by-step explanation:
 
        
             
        
        
        
1. .1667 or 16%
2. X >_ 2. (Greater than or equal to)
3. X<-1
4. This one isn't an equation, but simplifies to 2x