Current Attempt in Progress

On May $1,$ Carla Vista Company had beginning inventory consisting of $288$ units with a unit cost of $$6.$ During May, the company purchased inventory as follows:

$576$ units at $$6$

$864$ units at $$7$

The company sold $1440$ units during the month for $$11$ per unit. Carla Vista uses the average$-$cost method. Assuming that a periodic inventory system is used, the weighted$-$average unit cost for May is

$$6\mathrm{.}00.$

$$6\mathrm{.}50.$

$$6\mathrm{.}60.$

$$7\mathrm{.}00.$