10x^4y^3 - 5x^3y^2 + 20x^2y....first, find the GCF of ur coefficients (numbers)....it is 5...now find the lowest exponents of x, which is x^2...and now find ur lowest exponent of y, which is y
so ur GCF is : 5x^2y
        
                    
             
        
        
        
Answer:
42 ft
Step-by-step explanation:
 2(L + W ) = P
2 (12 + 9) = P
2 (21) = P
42 = P
P = 42
 
        
             
        
        
        
X=11, set 10x+5x+15=180
                 15x+15=180, subtract 15 from 180= 165, then divide 165 by 15
        
             
        
        
        
Answer:
answer for the equation is 6.75