The expression can be simplified as:
 k^3(k7/5)^-5
= k^(3+-5) * (7/5)^-5
(Collecting the powers of k at one side and the constants at other side)
= k^-2 * (5/7)^5
(Solving thr integer powers)
= k^-2 * (3125/16807)
        
             
        
        
        
Answer:
4x10^6
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Step-by-step explanation:
This the solution 
the answer is one
 
        
             
        
        
        
Answer:

Step-by-step explanation: