-0.272727272727272727272727272727
        
                    
             
        
        
        
Intersecting lines are lines that meet at some point while perpendicular lines are intersecting lines that makes a right angle at the point of intersection.
Two line can either be intersecting or perpendicular. It is not possible to have two line that is neither intersecting or parallel.
        
             
        
        
        
First multiply each term by 24(the common denominator found by 8×3) to remove the fractions and make things easier. 

This will give you,

Then just continue to simplify and isolate the variable.



 
 
        
        
        
Your answer is y=-3/4x+7 because when you find rise over run it's -9/8 which rounds down to -3/4 which is your slope and 7 is the 
 
        
             
        
        
        
Volume of a cube = 1/3 volume of cube = 1/3 * 36 = 12 cubic feet.