Answer:
2x²-7x
Step-by-step explanation:
7x²-5x²=2x²
10x-3x=7x
 
        
             
        
        
        
Answer:
A -$66.65
Step-by-step explanation:
4.50x 14 = 63.00 in penalties
-63.00 + - 3.65 = -66.65
 
        
                    
             
        
        
        
Perpendicular lines will have negative reciprocal slopes
B. y = -4x+ 5  and y = 1/4x + 4
D. y = x + 4 and y = -x + 4
E. y = -3 and x = -3
        
             
        
        
        
ANSWER

EXPLANATION
According to the power property of logarithms:

The given logarithm is 

When we apply the power property to this logarithm, we get,

 
        
                    
             
        
        
        
Let the breadth be x
length=x+8
according to the question
area of the pool = l*b
105=x*x+8
if u solve this equation further u will get the answer