The city of Belgrade, Serbia, is contemplating building a second airport to relieve congestion at the main airport and is considering two potential sites, $x$ and $Y.$ Hard Rock Hotels would like to purchase land to build a hotel at the new airport. The value of land has been rising in anticipation and is expected to skyrocket once the city decides between sites $x$ and $Y.$ Consequently, Hard Rock would like to purchase land now. Hard Rock will sell the land if the city chooses not to locate the airport nearby. Hard Rock has four choices: $(1)$ buy land at $x,(2)$ buy land at $Y,(3)$ buy land at both $x$ and $Y,$ or $(4)$ do nothing. Hard Rock has collected the following data $($which are in millions of euros$)$:

$\backslash$table$[[,$Site $x,$Site $Y$

airport nearby. Hard Rock has four choices: $(1)$ buy land at $x,(2)$ buy land at $Y,(3)$ buy land at both $x$ and $Y,$ or $(4)$ do nothing. Hard Rock has collected the following data $($which are in millions of euros$)$:

$\backslash$table$[[,$Site $x,$Site $Y$