Consider the following limit$-$order book for FinTrade stock. The last trade in the stock occurred at a price of $$91.$

Limit Buy Orders Limit Sell Orders

Price Shares Price Shares

$ $90\mathrm{.}75500$ $ $91\mathrm{.}25100$

$90\mathrm{.}5040091\mathrm{.}50100$

$90\mathrm{.}2550094\mathrm{.}75300$

$90\mathrm{.}0020098\mathrm{.}25100$

$89\mathrm{.}50600$

Required:

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

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

If you were a security dealer, would you want to increase or decrease your inventory of this stock?