An investment dealer acquired a $5000, 91-day Province of Alberta Treasury bill on its date of issue

Question:

An investment acquired a $5000, 91-day Province of Alberta Treasury bill on its date of issue at a price of $4966.20. What was the annual rate of return?
Dealer
A dealer in the securities market is an individual or firm who stands ready and willing to buy a security for its own account (at its bid price) or sell from its own account (at its ask price). A dealer seeks to profit from the spread between the...