Question 440174
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi
If I am understanding Your Question properly
    A = lnP/-.000121
 -.000121A = lnP
   e^( -.000121A) = P

*[tex \LARGE \ \ \ \ \ \ \ \ \ \ log_b(x) \ = \ y \ \ \Rightarrow\ \ b^y = x]