Answer:
5 ft
Step-by-step explanation:
Let the height of the previous jump be represented by j.  Then 1.1j = 5.5 ft.
Dividing both sides by 1.1, we get j = 5 ft.  This was the height of the previous jump.
 
        
                    
             
        
        
        
4.5x5=22.5
not sure if this is right, but hope it helps
        
             
        
        
        
Answer:
17 feet
Step-by-step explanation:
Since a square has 4 sides, you have to do 68 / 4 to find one of the sides. 
68/4 = 17
And to check, if you add up all sides...
17+17+17+17 = 68
 
        
             
        
        
        
Here, this website explains it perfectly
Step-by-step explanation:
https://www.k5learning.com/blog/subtracting-positive-and-negative-numbers
 
        
                    
             
        
        
        
I=400(0.04)(5)
Interest is 80 dollars of interest
400+80=480
I think that is the answer you're looking for :)