18) Below is the limit order book for a stock. The last trade in the stock occurred at a price of $40 Limit Buy Orders Limit Sell Orders Price Shares Price Shares $39.75 75 $40.25 100 $39.50 125 $40.50 100 a) How much is a dealer compensated for providing liquidity in this market? b) What is the average price at which an investor could buy 150 shares? 18) Below is the limit order book for a stock. The last trade in the stock occurred at a price of $40 Limit Buy Orders Limit Sell Orders Price Shares Price Shares $39.75 75 $40.25 100 $39.50 125 $40.50 100 a) How much is a dealer compensated for providing liquidity in this market? b) What is the average price at which an investor could buy 150 shares