One side of the rectangle is x=2, the other side is 2x-5
Add up all the four sides: (x+2) +(x+2)+(2x-5)+(2x-5)=54
6x-6=54
x=10
#3: suppose the first integer is x, then the second one is x+2
x(x+2)=255
x^2 +2x -255 =0
factor the quadratic equation: (x+17)(x-15)=0 
x=-17, which is impossible, or x=15
so the two positive integers are 15 and 17
        
             
        
        
        
A is the answer i think so
        
                    
             
        
        
        
Answer: -6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
yes its 14 crishmas tree.
 
        
                    
             
        
        
        
ABC = 408 
C + 7 = B
A + 5 = B 
B - 7 + B - 5 + B = 408
3B - 12 = 408
     + 12 = +12
3B = 420
/3   = /3
B = 120
A = 115
C = 113
The answer is A = 115, Abel has $ 115