Use the FOIL (first, outside, inside, last) to expand the terms in the brackets.
(w - 7)(w + 4)
first: w × w = w²
outside: w × 4 = 4w
inside: -7 × w = -7w
last: -7 × 4 = -28
Now you add all the terms together to get:
w² + 4w - 7w - 28
This simplifies to give you:
w² - 3w - 28
Hope that helps! :)
 
        
             
        
        
        
So the percentage Mark makes comparative to the price of the refrigerator sold is 

 9%. If we take 9% of the given sale prices:
A: 

B: 

C: 

D: 

So (A) has the same commission rate.
 
        
        
        
Answer:


Step-by-step explanation:
Given
See attachment for kite dimension
Required
Determine the width and the area
From the attachment, the height of the kite is:


The width which is half the height is:



The area is:




 
        
             
        
        
        
Answer:
true
Step-by-step explanation:
please see the image I attached of my work