Question 1035581
No.  USE logarithms!  Maybe, logarithms of whatever base you want, and also use Change of Base formula.


{{{log(b,(1.46^t))=log(b,5)}}}
{{{t*log(b,1.46)=log(b,5)}}}
{{{t=log(b,5)/log(b,1.46)}}}----------use Change of Base formula from here.