Home Depot's annual turns are $4\mathrm{.}9,$ its Cost of Goods Sold $($COGS$)$ is $$44\mathrm{.}7$ Billion, and its gross margin is $33\%.$ Recall, gross margin $=($Revenue $-$ COGS$)/$ Revenue. Wh

at is the average inventory it holds in $ Billion? $($Two decimals.$)$