Alter Templar wants to use EOQ models for his printer paper business. The demand at his warehouse is $10,000$ packets per year. His supplier charges a $$10$ delivery fee every time Alter places an order, and the entire order comes at once. Alter pays his supplier $$2$ for each packet. Alter's annual inventory holding cost is $10\%$ of his cost price.

$($a$)$ What is Alter's annual holding cost $H$ in $ per packet of inventory, per year?