$1\mathrm{.}2$ Firm $1$ and Firm $2$ play an Advertising game in the market for good X$.$ The payoff matrix for the good $x$ as follow:

$\backslash$table$[[$Firm $2,$Firm $1],[,$No advertisement,Advertisement$],[$No advertisement,$1$:$$10$ millions,$1$: $$15$ millions$],[,2$:$$5$ tri$$u$,2$:$$0$ tri$$u$],[$Advertisement$,1$:$$6$ millions,$1$:$$4$ millions$],[,2$:$$8$ millions,$2$:$$2$ millions$]]$

If each firm behaves as an irrational person, what is firm l$\text{'}$s decision? What is firm $2\text{'}$s decision? Explain

$1\mathrm{.}3.$ What value of $x$ makes you feel that the following two choices are the same:

$P1($$$0)$ and P$2(0\mathrm{.}5$;$x$;$-$$$30).$ Explain. What conclusion do you draw from your choice?