Answer: the answer is 546
Step-by-step explanation: because 646 goes into 565 so 546 is the answer
 
        
             
        
        
        
Answer: ABC seem to be equilateral
so A=B=C=60
D=42
E=35
F=35
G=55
H=45
I=45
j=15
k=15
L=75
M=180
N=11
O=35
P=11
Q=55
R=55
S=32
T=32
U=69
Step-by-step explanation:
 
        
                    
             
        
        
        
Hi there!  
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I believe your answer is:  
"Isolate the variable  using inverse operations."
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Here’s why: 
To solve for a variable, we would have to isolate it on one side. 
To isolate it, we would use inverse operations on both sides on the equation until the variable is isolated.
There are no like terms in the given equation. 
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Hope this helps you. I apologize if it’s incorrect.  
 
        
                    
             
        
        
        
Answer:
-2x² + 90x + 500
Step-by-step explanation:
Use FOIL method
Area of rectangle = length * width
                              = (50 - x)(2x + 10)
                              = 50*(2x) + 50*10 + (-x)*2x + (-x)*10
                              = 100x + 500 - 2x² - 10x
                              = -2x² + 10<u>0x - 10x </u>+ 500  {Combine like terms}
                             = -2x² + 90x + 500