CU, Incorporated (CUI) produces copper contacts that it uses in switches and relays. CUI needs to determine the order quantity, Q, to meet the annual demand at the Lowest cost. The price of copper depends on the quality ordered. Here are price-break and other data for the problem: Which quantity should be ordered? Please show all formulas with clear step by step explanation. Thank you.

at the lowest cost. The price of copper depends on the quantity ordered. Here are price-break and other data for the