Answer:
n=R
Step-by-step explanation:
f(n)=9n+1
 
        
             
        
        
        
Answer:
x = 24
Step-by-step explanation:
(2x - 4) + (3x + 5) + (2x + 11) = 180°
Combine like terms:
7x + 12 = 180
Subtract 12 on both sides:
7x = 168
Divide 7 on both sides:
x = 24
 
        
                    
             
        
        
        
Answer is B 
Find perimeter then divide by 3 (because price is per 3 meters) then times by 500 to get the answer
        
             
        
        
        
Perimiter=6 times legnth of one side
P=6(x+1/3y)
P=6x+6/3y
P=6x+2y
if x=5 and y=6
P=6(5)+2(6)
P=30+12
P=42
A. P=6x+2y
B. 42 units is the perimiter