Answer is 108 pages. 1/3 of an hr is 20 min. 20*3=60 which is an hr. 3+3=6. So then you get 6*18=108.
        
             
        
        
        
 We can't see any given circle.  The general form for a circle centered at the origin with radius r is

 
        
                    
             
        
        
        
Area is supposed to be multiplied by 2.
        
                    
             
        
        
        
Here’s the answer. See pictures.
 
        
        
        
Answer:
The answer to your question is 25 ft
Step-by-step explanation:
Data
height = 20 ft
leg = 15 ft
length of the line = ?
To solve this problem use the Pythagorean theorem. 
Height = short leg = b
leg = long leg = a
length of the line = hypotenuse = c
- Substitution
          c² = (20)² + (15)²
-Simplification
          c² = 400 + 225
          c² = 625
-Result
          c = 
          c = 25 ft