What is the inventory control system for Tegdiws?

$9.$ Depending on which inventory control model Tegdiws has, calculate R for fixed$$

order quantity model OR calculate q for fixed$$time period model. Show your work in

detailed for partial credits.

$10.$ What is the inventory control system for Widgets?

$11.$ Depending on which inventory control model Widgets has, calculate R for fixed$$

order quantity model OR calculate q for fixed$$time period model. Show your work in

detailed for partial credits.

$12.($Multiple choice$)$ Using the ABC classification system for inventory, which of the

following is a true statement?

A$.$ The C items are of moderate dollar volume.

B$.$ You should allocate about $50$ percent of the dollar volume to B items.

C$.$ The A items are of low dollar volume.

D$.$ The A items are of high dollar volume.