Question 1022135
Like this:  {{{P(t)= 6*2^(x/50)}}}  but decide if you want t or x; you will have either  {{{P(t)= 6*2^(t/50)}}}  or  {{{P(x)= 6*2^(x/50)}}}.


Year 1900 is 100 years LESS than year 2000, so let your independent variable be  {{{-100}}}.  Evaluate P.