What is the sales value per ounce of a gin if the bar sold a total of $180$oz of Martini for $$4\mathrm{.}5$ and $187\mathrm{.}5$oz of striaght shots for $$4.$ a$$367\mathrm{.}5$ b$$0\mathrm{.}5$ c$$8\mathrm{.}5$ d$$2\mathrm{.}73$