Question 201266
{{{f(t)   =   P*e^(tr)}}}
{{{f(7)   =   3000*e^(7*0.059)}}}
{{{f(7) = 3000*1.511}}}
{{{f(7) = 4534.03}}}

2)
{{{f(t)   =   P*e^(tr)}}}
{{{2*3000   =   3000*e^(t*0.059)}}}
{{{2 = e^(t*0.059)}}}
{{{ln(2) = t*0.059}}}
{{{0.693 = t*0.059}}}
{{{11.7 = t }}}