$As$ manager $of$ the $St.$ Cloud Theatre Company, you have decided that concession sales will support themselves. The following table provides the information you have been able $to$ put together thus far:

$\begin{array}{cc}\text{I}\text{t}\text{e}\text{m}& \text{S}\text{e}\text{l}\text{l}\text{i}\text{n}\text{g}\text{P}\text{r}\text{i}\text{c}\text{e}\\ \text{V}\text{a}\text{r}\text{i}\text{a}\text{b}\text{l}\text{e}\text{C}\text{o}\text{s}\text{t}& \%of\text{R}\text{e}\text{v}\text{e}\text{n}\text{u}\text{e}\\ \text{S}\text{o}\text{f}\text{t}\text{D}\text{r}\text{i}\text{n}\text{k}& \text{\$}1\mathrm{.}20\\ \text{\$}0\mathrm{.}65& 25\\ \text{W}\text{i}\text{n}\text{e}& \text{\$}2\mathrm{.}00\\ \text{\$}1\mathrm{.}00& 25\\ \text{C}\text{o}\text{f}\text{f}\text{e}\text{e}& \text{\$}1\mathrm{.}25\\ \text{\$}0\mathrm{.}35& 30\\ \text{C}\text{a}\text{n}\text{d}\text{y}& \text{\$}1\mathrm{.}20\\ \text{\$}0\mathrm{.}35& 20\end{array}$

decide $to$ consider this a fixed cost. Booth rental, which $is$ a contractual cost $at$ $$60\mathrm{.}00$ for each booth per night, $is$ also a fixed cost.

$a=9,(round$ your response $to$ two decimal places$).$