Speculation. Blue Demon Bank expects that the Mexican peso will depreciate against the dollar

from its spot rate of $$\mathrm{.}15$ to $$\mathrm{.}14$ in $10$ days. The following interbank lending and borrowing rates exist:

$\backslash$table$[[,$ Lending Rate ${?}_{(}),$Borrowing Rate$],[$bllar$,8\mathrm{.}0\%,8\mathrm{.}3\%$