I think it would be 
21/200
        
                    
             
        
        
        
Answer: 81.64 feet
Step-by-step explanation:
Circumference of a circle = pi * diameter
Circumference of a circle = 3.14 * 26 feet
Circumference of a circle = 81.64 feet
 
        
             
        
        
        
You should choose c because parallel lines have the same slope
        
             
        
        
        
Answer:
n= 1/2 (  )  or  (0.5)
 )  or  (0.5)
AND
n= -3/2 (  ) or (-1.5)
 ) or (-1.5)
Step-by-step explanation:
4n^2+4n=3
step1: move 3 to the other side and make the equation equal to zero.
4n^2+4n-3=0
step2: factorise the equation.
(2n-1)(2n+3)=0
step3: make each bracket equal to zero.
2n-1=0
2n+3=0
step4: solve for n values.
<u>1.</u> 2n-1=0
(add 1 for both sides)
2n=1
(divide by 2 for both sides)
n= 1/2 (  )  or  (0.5)
 )  or  (0.5)
<u>2.</u> 2n+3=0
( subtract 3 for both sides)
2n=-3
(divide by 2 for both sides)
n= -3/2 (  ) or (-1.5)
 ) or (-1.5)