Consider the following limit order book for FinTrade stock. The last trade in the stock

occurred at a price of $$50.$

Limit Buy Orders Limit Sell Orders

Price Shares Price Shares

$$49\mathrm{.}75500$ $$49\mathrm{.}80100$

$49\mathrm{.}7090049\mathrm{.}85100$

$49\mathrm{.}6570049\mathrm{.}90300$

$49\mathrm{.}6040049\mathrm{.}95100$

$48\mathrm{.}65600$

a$.$ If a market buy order for $100$ shares comes in$,$ at what price will it be filled?

b$.$ At what price would the next market buy order be filled?

c$.$ If you were a security dealer, would you want to increase or decrease your inventory

of this stock?