I need some help with the practice below , please show your work ( for marketing )

5. Holiday sales are always heavy and are very important to the profit of the dress department. Ample stock must be on hand. Determine the BOM stock figure for December (inventory on hand on 12/1) for the department, with planned sales of $180,000 and a planned stock-to-sales ratio for the month of 6.3. Show your work. 6. A new retail buyer has been told that the stock-to-sales ratio for the suits department during all months in the fall is 4.1. Stock at the end of October is planned to be at $147,600. Planned sales for that department in November have been calculated at $36,000. What is the BOM stock figure for November? Show your work. 7. A buyer for a chain store has planned June purchases of $1,680,000 for his category of goods to distribute amoprg the store's branches. Of that category, $940,000 of items were received in June and sent to the branches. Another $690,000 of goods was ordered for June delivery from various vendors. What is the buyer's June OTB balance? Show your work