Q$4.$ Use the figure for the question$($s$)$ below.

BHP BILLITON $($ASX:

BHP$.$AX$)$

Using the above information, how much would you pay for a share of BHP Billiton stock?

Also, how much you are going to receive if you are going to sell $1000$ shares? What is the bid$-$ask spread? Write your steps.