1. 

   math_celebrity Administrator Staff Member

   5^(n - 1) = 15,625
   
   We know 5^6 = 15,625, so we have:
   n - 1 = 6
   
   Add 1 to each side:
   n - 1 + 1 = 6 + 1
   
   Cancel the 1's on the left side:
   n = 7

    

   math_celebrity, Jan 13, 2023

   #1
   
   

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