The bookstore at Syracuse University uses scientific methodology to cut costs and provide "great service" to the students. The store manager, Mrs. Alexis Cash-Lovver, has compiled the following data for Duque game polo shirts. The shirts are purchased for a piece and sold for . The unsold shirts are returned to the distributor and the bookstore is reimbursed at each. The shirts must be ordered in increments of 10. Given the historical demand distribution below answer:

Demand	Probability of Demand
110	0.50
120	0.30
130	0.20

What is Cu? What is Co? What is the minimum expected cost?