Answer:
4 ft downwards
Step-by-step explanation:
old height off the ground :
7^2+b^2=25^2
49+b^2=625
b^2=576
b=24
new height off the ground : 
7+8=15
15^2+ b^2 =25^2
225+b^2 = 625
b^2 = 400
b=20
difference between heights : 
24 - 20 =  4
 
        
             
        
        
        
The first letter can be any one of 26 letters.  For each one . . .
The second letter can be any one of 26 letters.  For each one . . .
The first digit can be any one of 10 digits.  For each one . . .
The second digit can be any one of 10 digits.  For each one . . .
The third digit can be any one of 10 digits.  For each one . . .
The fourth digit can be any one of 10 digits.  For each one . . .
The fifth digit can be any one of 10 digits.
The total number of possibilities is 
                   (26 x 26 x 10 x 10 x 10 x 10 x 10) =
                   ( 26² x 10⁵) = (676 x 100,000) = <em>67,600,000</em> .
        
                    
             
        
        
        
ghdjfbwkj dwjfjwngjm34klyke4rk
 
        
                    
             
        
        
        
Answer:
The sale price is $279.
Step-by-step explanation:
$310-10%=$279