Your discount brokerage firm charges $8.20 per stock trade. How much money do you need to buy 220 shares of Pfizer, Inc. (PFE), which trades at $29.42? (Round your answer to 2 decimal places.)

Your full-service brokerage firm charges $165 per stock trade. How much money do you receive after selling 195 shares of Nokia Corporation (NOK), which trades at $17.62? (Round your answer to 2 decimal places.)

You would like to buy shares of Sirius Satellite Radio (SIRI). The current ask and bid quotes are $4.54 and $4.51, respectively. You place a market buy order for 680 shares that executes at these quoted prices. How much money did it cost to buy these shares? (Round your answer to 2 decimal places.)