LEE's Publishing Company intends to publish a textbook in Operations Management. Fixed costs are $$70,000$ per year, variable costs per unit are $$10,$ and the selling price per unit is $$12.$ What variable cost per unit would result in $$50,000$ annual profits if annual sales are $30,000$ units?

Group of answer choices

None of the above

$$9\mathrm{.}50$

$$8\mathrm{.}50$

$$8\mathrm{.}00$

$$9\mathrm{.}00$