The Milton Lumber Company sells boards of various lengths (3-foot, 4-foot, 8-foot, and 10-foot wood boards).

The Milton Lumber Company sells boards of various lengths (3-foot, 4-foot, 8-foot, and 10-foot wood boards). This company's customers demand 50 3-foot boards, 25 4-foot boards, 15 8-foot boards, and 70 10-foot boards per week. Milton Lumber cuts up boards of 20 feet in length to meet this demand and wants to determine how to satisfy its customers' demands with the minimal amount of waste. Assume that all boards share the same width and thickness. Formulate and solve an IP model.

a)