a$.CHF1\mathrm{.}4000=$$$1\mathrm{.}00?$

b$.CHF1\mathrm{.}3360=$$$1\mathrm{.}00?$

c$.CHF1\mathrm{.}2910=$$$1\mathrm{.}00?$

d$.CHF1\mathrm{.}4870=$$$1\mathrm{.}00?$

b$.$ The effective cost of debt for one year for a U$.$S$.$ dollar$-$based company if the exchange rate at the end of the period was CHF$1\mathrm{.}3360=$$$1\mathrm{.}00$ is $,6.($Round to three decimal places.$)$