The area of a rectangle is L x W, so 9(5+x) is the formula for the area in factored form. It can be simplified to 45+9x
        
             
        
        
        
Hey there! :D
All parallel lines have the same slope. They would need to, otherwise, they would intersect or come together at an angle eventually. 
So, let's find the slope. 
I'm going to use rise over run. (Remember, when moving to the left, you make the number negative. 
rise=1 run= -3
-1/3 <== the slope 
"C" is the correct answer. 
I hope this helps!
~kaikers 
        
             
        
        
        
148,000,000,000,000,000,000,000
        
             
        
        
        
There are 100 centimeters per meter.
So, in 2 meters, there are 200 centimeters.
Hope this helps!
        
                    
             
        
        
        
Answer:
4x^2-2x+7
Step-by-step explanation: