If it took you (one person) 3 days to build a doghouse, then it should take 2 people to build it in half the time. So all we have to do is split 3 days in 2. 
3/2 = 1.5 
So it would take 1 1/2 days or 36 hours for 2 people to complete the doghouse.
        
             
        
        
        
Seventy-three percent is the same as 
73% , 
.73 , and
 
 .
 
        
                    
             
        
        
        
X+(x+1)=17
So 2x+1=17
Which means 2x=16
Which then means x=8
But you still need the second number, which is x+1, so 8+1=9.
This means that the consecutive numbers are 8 and 9.
        
             
        
        
        
Answer:
I am not sure but I think it is 3
Step-by-step explanation:
2x+29=5x+20
5x-2x+29=20
3x=-9 
1x=3