Jill lent Jack $$3,200\mathrm{.}00$ exactly Three years years ago. Today, Jack pays Jill $$3,950\mathrm{.}00.$ What annual rate of interest did Jill earn?

Multiple Choice

$7\mathrm{.}27$ percent

$3\mathrm{.}64$ percent

$5\mathrm{.}27$ percent

$0\mathrm{.}61$ percent