8. A jewelry firm buys semiprecious stones to make bracelets and rings. The supplier charges $41 per stone, annual carrying costs are 13%, and the cost of processing orders is $27. The jewelry firm operates 250 days per year and their usage rate is 91 stones per day.

What is the annual cost of holding precious stones in inventory?

(Correct answer is 1,279.4437. Please help me by showing the steps to get that answer. Thank You!)

9. A jewelry firm buys semiprecious stones to make bracelets and rings. The supplier charges $32 per stone, annual carrying costs are 22%, and the cost of processing orders is $36. The jewelry firm operates 250 days per year and their usage rate is 89 stones per day.

How many orders per year will be placed for semi-precious stones?

(Correct answer is 46.6429. Please help me by showing the steps to get that answer. Thank You!)

10. A jewelry firm buys semiprecious stones to make bracelets and rings. The supplier charges $69 per stone, annual carrying costs are 23%, and the cost of processing orders is $21. The jewelry firm operates 250 days per year and their usage rate is 82 stones per day.

What is total annual cost to order and hold semi-precious stones?

(Correct answer is 3,696.4943. Please help me by showing the steps to get that answer. Thank You!)