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a. A one-year treasury bill with a face value of $4 million has a nominal interest rate of  % if its purchase price is $3,885,000 and a nominal interest rate of  % if its purchase price is $3,870,000. Enter your responses rounded to 1 decimal place.

b. To raise the nominal interest rate on treasury bills the Bank of Canada can adjust supply in its auction of bills through a(n)  (Click to select)  decrease  increase  in how many bills it sells at the auction.

c. To raise the nominal interest rate on treasury bills the Bank of Canada can also adjust its own purchases in the auction of treasury bills through a(n)  (Click to select)  decrease  increase  in how many bills it buys at the auction.