Bro that stuff is really hard is this rocket science
        
             
        
        
        
Answer:
x = -4
Step-by-step explanation:
2x+4(2x+7)=3(2x+4)
Distribute
2x+8x + 28 = 6x +12
Combine like terms
10x +28 = 6x +12
Subtract 6x from each side
10-6x+28 = 6x +12 -6x
4x +28 = 12
Subtract 28 from each side
 4x+28-28 = 12-28
4x = -16
Divide each side by 4
4x/4 = -16/4
x = -4
 
        
                    
             
        
        
        
By solving it in your head
        
                    
             
        
        
        
<span>number of gallons of gas, x
</span><span>total cost of the gas, y
</span>
3.75x <= 12
       x <= 3.2
<span>The greatest amount of gas Berto can buy is 3.2 gallons</span>
        
                    
             
        
        
        
Answer:
t = 54 seconds
Step-by-step explanation:
The equation that models the path of a rocket into the air is given by :

It is required to find the time after which the rocket will hit the ground. When it hits the ground, the height of the rocket will becomes zero. It means, 
h(t) = 0
i.e.

It means after 54 seconds, the rocket will hit the ground.