Question $1$: Cost Behavior and Process Mapping Given Alamac Building Supply's focus on lean manufacturing to achieve high levels of customer service with minimal inventory investment, analyze the cost behavior $($fixed$,$ variable, or mixed$)$ of the following expenses. Additionally, map out a basic supply chain process for a key product line.

$$ Utilities: $$15,000$ annually

$$ Indirect labor: $$120,000$ annually

$$ Machinery maintenance: $$30,000$ annually

Question $2$: Inventory Management Alamac aims to maintain optimal inventory levels to meet demand without incurring excessive costs. Calculate the inventory turnover rate and days of supply using the following data: calculate Inventory Turnover Rater and Days of Supply using the following: Cost of Goods Sold $($COGS$)$ with $$3,350,000$ for the year and the total average inventory value is $$780,000.$