ANSWER
Find out the how long will the Yellow balloon be higher than the orange balloon.
To proof
Now  the diagram is given below
As given
A yellow hot-air balloon is 100 feet off the ground and rising at rate of 8 feet per second.
i.e height of the yellow baloon off the ground  = 100 feet 
 rising at rate = 8 feet per second.
.An orange hot-air balloon is 160 feet off the ground and rising at a rate of 5 feet per second. 
i.e height of the orange baloon off the ground  = 160 feet 
 rising at rate = 5feet per second.
Formula

Relative velocity =  rising rate of yellow balloon -   rising rate of orange balloon
= 8 -5
= 3 feet per second
Relative distance =  height of the yellow baloon off the ground -  height of the orange baloon off the ground 
= 160 -100
= 60 feet
put in the formula

= 20 second
after  20 second Yellow balloon will be higher than the orange balloon.
Hence proved
 
 
        
             
        
        
        
Answer: 19?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
38
Step-by-step explanation:
96/16  
+(25)(2)−15−3
=6+(25)(2)−15−3
=6+50−15−3
=56−15−3
=41−3
=38
 
        
             
        
        
        
8x - 2y = -8
-5x + 2y = -1
3x = -9
x = -3
        
                    
             
        
        
        
2 over 3 plus 5 equals 5 and 2 over 3