Question 1161070
{{{cross(P=9000 x e^0.021t)}}}


{{{P=9000e^(0.021t)}}}

-


When to triple?

{{{e^(0.021t)=3}}}

{{{ln(e^(0.021t))=ln(3)}}}

{{{0.021t=ln(3)}}}

{{{t=ln(3)/0.021}}}----------use calculator for the value.