A U$.$S$.$ firm has just borrowed CAD$10,000,000$ to make improvements to a mine site and processing plant. The interest rate is $6\mathrm{.}50\%$ per year and the USD changes in value from USD$/$CAD $1\mathrm{.}3500$ at the time the loan was made to USD$/$CAD $1\mathrm{.}300$ at the end of the first year.

How much interest and principal $($in USD$)$ will the firm pay at the end of the first year if they repay the entire loan plus interest?

What is the interest rate including the change in exchange rate?