$15.41
Multiply the $1.79 by 4 which gets you $7.16. Then, add the $7.16 to the $8.25 and that gets you $15.41.
 
        
             
        
        
        
Answer:
The maximum height is 784 feet
Step-by-step explanation:
In this problem we use the kinematic equation of the height h of an object as a function of time

Where  is the initial velocity and
 is the initial velocity and  is the initial height.
 is the initial height.
We know that

 
Then the equation of the height is:

For a quadratic function of the form 
where  
the maximum height of the function is at its vertex.
The vertice is

In this case

Then the vertice is:

Now we calculate h (6)

The maximum height is 784 feet
 
        
             
        
        
        
Answer:
7/4 which could also be written as 1 and 3/4
 
        
                    
             
        
        
        
I'm assuming you mean 2^(5)(4/3)(2).  
So multiplying all of the powers together yields 2^(40/3)