Answer:
6x+2-1x+5=42
Step-by-step explanation:
 
        
                    
             
        
        
        
By using the Pythagoras theorem, the length of the ladder will be 13.6 feet.
<h3>What is a Pythagoras theorem?</h3>
The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.
The Pythagoras theorem formula is given as 
H² = P² + B²
Jennifer needs to use a ladder to clean a second-floor window on a building. 
If the window is 13 ft above the ground and the base of the ladder is 4 ft from the building.
Then the length of the ladder will be 
H² = 13² + 4²
H² = 169 + 16
H² = 185
H = 13.6 ft
More about the Pythagoras theorem link is given below.
brainly.com/question/343682
#SPJ1
 
        
             
        
        
        
So out of 100 questioned 71 said Dallas Cowboys , that means 71% did  , now we have to work out 71% of 1200 which is 852