For this problem we use the continuously compounded interest formula:
[tex]M=M_0e^{rt}[/tex]where M_0 is the initial amount, r is the interest rate and t is the number of years. Substituting M_0=$2600, r=0.09, and t=5 we get:
[tex]M=2600e^{0.09\cdot5}=2600e^{0.45}=4077.61[/tex]