Laim descended 5,050.25 feet and his elevation changed by -5,050.25.
        
             
        
        
        
I multiplied $15 by 230% and then added my answer(which was 34.5) because subtracting it wasn't an option and got $49.50
        
                    
             
        
        
        
Answer:
x=-8
Step-by-step explanation:
collect like terms 
-5x=40
divide both sides of the equation by -5
so the answer would be x=-8
 
        
             
        
        
        
Answer:
Step-by-step explanation:
for the first one it's (x + 5) x (x - 7)
second one it's  (x + 5) x (x + 7)
third one is (x - 5) x ( x + 7)
fourth one is (x -5) x (x - 7)
thats the answer